Mercurial > repo
annotate perl-5.22.2/pp_sort.c @ 8045:a16537d2fe07
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author | HackBot |
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date | Sat, 14 May 2016 14:54:38 +0000 |
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8045
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1 /* pp_sort.c |
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2 * |
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3 * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
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4 * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others |
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5 * |
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6 * You may distribute under the terms of either the GNU General Public |
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7 * License or the Artistic License, as specified in the README file. |
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8 * |
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9 */ |
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10 |
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11 /* |
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12 * ...they shuffled back towards the rear of the line. 'No, not at the |
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13 * rear!' the slave-driver shouted. 'Three files up. And stay there... |
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14 * |
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15 * [p.931 of _The Lord of the Rings_, VI/ii: "The Land of Shadow"] |
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16 */ |
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17 |
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18 /* This file contains pp ("push/pop") functions that |
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19 * execute the opcodes that make up a perl program. A typical pp function |
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20 * expects to find its arguments on the stack, and usually pushes its |
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21 * results onto the stack, hence the 'pp' terminology. Each OP structure |
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22 * contains a pointer to the relevant pp_foo() function. |
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23 * |
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24 * This particular file just contains pp_sort(), which is complex |
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25 * enough to merit its own file! See the other pp*.c files for the rest of |
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26 * the pp_ functions. |
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27 */ |
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28 |
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29 #include "EXTERN.h" |
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30 #define PERL_IN_PP_SORT_C |
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31 #include "perl.h" |
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32 |
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33 #if defined(UNDER_CE) |
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34 /* looks like 'small' is reserved word for WINCE (or somesuch)*/ |
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35 #define small xsmall |
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36 #endif |
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37 |
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38 #define sv_cmp_static Perl_sv_cmp |
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39 #define sv_cmp_locale_static Perl_sv_cmp_locale |
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40 |
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41 #ifndef SMALLSORT |
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42 #define SMALLSORT (200) |
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43 #endif |
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44 |
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45 /* Flags for qsortsv and mergesortsv */ |
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46 #define SORTf_DESC 1 |
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47 #define SORTf_STABLE 2 |
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48 #define SORTf_QSORT 4 |
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49 |
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50 /* |
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51 * The mergesort implementation is by Peter M. Mcilroy <pmcilroy@lucent.com>. |
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52 * |
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53 * The original code was written in conjunction with BSD Computer Software |
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54 * Research Group at University of California, Berkeley. |
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55 * |
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56 * See also: "Optimistic Sorting and Information Theoretic Complexity" |
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57 * Peter McIlroy |
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58 * SODA (Fourth Annual ACM-SIAM Symposium on Discrete Algorithms), |
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59 * pp 467-474, Austin, Texas, 25-27 January 1993. |
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60 * |
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61 * The integration to Perl is by John P. Linderman <jpl.jpl@gmail.com>. |
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62 * |
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63 * The code can be distributed under the same terms as Perl itself. |
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64 * |
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65 */ |
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66 |
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67 |
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68 typedef char * aptr; /* pointer for arithmetic on sizes */ |
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69 typedef SV * gptr; /* pointers in our lists */ |
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70 |
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71 /* Binary merge internal sort, with a few special mods |
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72 ** for the special perl environment it now finds itself in. |
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73 ** |
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74 ** Things that were once options have been hotwired |
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75 ** to values suitable for this use. In particular, we'll always |
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76 ** initialize looking for natural runs, we'll always produce stable |
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77 ** output, and we'll always do Peter McIlroy's binary merge. |
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78 */ |
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79 |
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80 /* Pointer types for arithmetic and storage and convenience casts */ |
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81 |
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82 #define APTR(P) ((aptr)(P)) |
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83 #define GPTP(P) ((gptr *)(P)) |
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84 #define GPPP(P) ((gptr **)(P)) |
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85 |
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86 |
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87 /* byte offset from pointer P to (larger) pointer Q */ |
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88 #define BYTEOFF(P, Q) (APTR(Q) - APTR(P)) |
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89 |
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90 #define PSIZE sizeof(gptr) |
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91 |
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92 /* If PSIZE is power of 2, make PSHIFT that power, if that helps */ |
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93 |
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94 #ifdef PSHIFT |
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95 #define PNELEM(P, Q) (BYTEOFF(P,Q) >> (PSHIFT)) |
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96 #define PNBYTE(N) ((N) << (PSHIFT)) |
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97 #define PINDEX(P, N) (GPTP(APTR(P) + PNBYTE(N))) |
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98 #else |
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99 /* Leave optimization to compiler */ |
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100 #define PNELEM(P, Q) (GPTP(Q) - GPTP(P)) |
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101 #define PNBYTE(N) ((N) * (PSIZE)) |
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102 #define PINDEX(P, N) (GPTP(P) + (N)) |
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103 #endif |
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104 |
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105 /* Pointer into other corresponding to pointer into this */ |
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106 #define POTHER(P, THIS, OTHER) GPTP(APTR(OTHER) + BYTEOFF(THIS,P)) |
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107 |
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108 #define FROMTOUPTO(src, dst, lim) do *dst++ = *src++; while(src<lim) |
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109 |
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110 |
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111 /* Runs are identified by a pointer in the auxiliary list. |
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112 ** The pointer is at the start of the list, |
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113 ** and it points to the start of the next list. |
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114 ** NEXT is used as an lvalue, too. |
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115 */ |
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116 |
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117 #define NEXT(P) (*GPPP(P)) |
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118 |
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119 |
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120 /* PTHRESH is the minimum number of pairs with the same sense to justify |
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121 ** checking for a run and extending it. Note that PTHRESH counts PAIRS, |
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122 ** not just elements, so PTHRESH == 8 means a run of 16. |
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123 */ |
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124 |
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125 #define PTHRESH (8) |
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126 |
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127 /* RTHRESH is the number of elements in a run that must compare low |
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128 ** to the low element from the opposing run before we justify |
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129 ** doing a binary rampup instead of single stepping. |
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130 ** In random input, N in a row low should only happen with |
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131 ** probability 2^(1-N), so we can risk that we are dealing |
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132 ** with orderly input without paying much when we aren't. |
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133 */ |
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134 |
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135 #define RTHRESH (6) |
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136 |
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137 |
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138 /* |
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139 ** Overview of algorithm and variables. |
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140 ** The array of elements at list1 will be organized into runs of length 2, |
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141 ** or runs of length >= 2 * PTHRESH. We only try to form long runs when |
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142 ** PTHRESH adjacent pairs compare in the same way, suggesting overall order. |
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143 ** |
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144 ** Unless otherwise specified, pair pointers address the first of two elements. |
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145 ** |
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146 ** b and b+1 are a pair that compare with sense "sense". |
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147 ** b is the "bottom" of adjacent pairs that might form a longer run. |
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148 ** |
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149 ** p2 parallels b in the list2 array, where runs are defined by |
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150 ** a pointer chain. |
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151 ** |
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152 ** t represents the "top" of the adjacent pairs that might extend |
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153 ** the run beginning at b. Usually, t addresses a pair |
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154 ** that compares with opposite sense from (b,b+1). |
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155 ** However, it may also address a singleton element at the end of list1, |
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156 ** or it may be equal to "last", the first element beyond list1. |
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157 ** |
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158 ** r addresses the Nth pair following b. If this would be beyond t, |
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159 ** we back it off to t. Only when r is less than t do we consider the |
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160 ** run long enough to consider checking. |
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161 ** |
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162 ** q addresses a pair such that the pairs at b through q already form a run. |
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163 ** Often, q will equal b, indicating we only are sure of the pair itself. |
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164 ** However, a search on the previous cycle may have revealed a longer run, |
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165 ** so q may be greater than b. |
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166 ** |
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167 ** p is used to work back from a candidate r, trying to reach q, |
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168 ** which would mean b through r would be a run. If we discover such a run, |
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169 ** we start q at r and try to push it further towards t. |
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170 ** If b through r is NOT a run, we detect the wrong order at (p-1,p). |
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171 ** In any event, after the check (if any), we have two main cases. |
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172 ** |
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173 ** 1) Short run. b <= q < p <= r <= t. |
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174 ** b through q is a run (perhaps trivial) |
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175 ** q through p are uninteresting pairs |
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176 ** p through r is a run |
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177 ** |
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178 ** 2) Long run. b < r <= q < t. |
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179 ** b through q is a run (of length >= 2 * PTHRESH) |
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180 ** |
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181 ** Note that degenerate cases are not only possible, but likely. |
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182 ** For example, if the pair following b compares with opposite sense, |
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183 ** then b == q < p == r == t. |
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184 */ |
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185 |
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186 |
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187 static IV |
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188 dynprep(pTHX_ gptr *list1, gptr *list2, size_t nmemb, const SVCOMPARE_t cmp) |
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189 { |
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190 I32 sense; |
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191 gptr *b, *p, *q, *t, *p2; |
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192 gptr *last, *r; |
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193 IV runs = 0; |
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194 |
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195 b = list1; |
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196 last = PINDEX(b, nmemb); |
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197 sense = (cmp(aTHX_ *b, *(b+1)) > 0); |
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198 for (p2 = list2; b < last; ) { |
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199 /* We just started, or just reversed sense. |
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200 ** Set t at end of pairs with the prevailing sense. |
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201 */ |
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202 for (p = b+2, t = p; ++p < last; t = ++p) { |
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203 if ((cmp(aTHX_ *t, *p) > 0) != sense) break; |
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204 } |
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205 q = b; |
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206 /* Having laid out the playing field, look for long runs */ |
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207 do { |
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208 p = r = b + (2 * PTHRESH); |
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209 if (r >= t) p = r = t; /* too short to care about */ |
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210 else { |
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211 while (((cmp(aTHX_ *(p-1), *p) > 0) == sense) && |
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212 ((p -= 2) > q)) {} |
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213 if (p <= q) { |
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214 /* b through r is a (long) run. |
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215 ** Extend it as far as possible. |
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216 */ |
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217 p = q = r; |
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218 while (((p += 2) < t) && |
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219 ((cmp(aTHX_ *(p-1), *p) > 0) == sense)) q = p; |
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220 r = p = q + 2; /* no simple pairs, no after-run */ |
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221 } |
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222 } |
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223 if (q > b) { /* run of greater than 2 at b */ |
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224 gptr *savep = p; |
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225 |
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226 p = q += 2; |
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227 /* pick up singleton, if possible */ |
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228 if ((p == t) && |
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229 ((t + 1) == last) && |
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230 ((cmp(aTHX_ *(p-1), *p) > 0) == sense)) |
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231 savep = r = p = q = last; |
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232 p2 = NEXT(p2) = p2 + (p - b); ++runs; |
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233 if (sense) |
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234 while (b < --p) { |
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235 const gptr c = *b; |
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236 *b++ = *p; |
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237 *p = c; |
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238 } |
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239 p = savep; |
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240 } |
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241 while (q < p) { /* simple pairs */ |
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242 p2 = NEXT(p2) = p2 + 2; ++runs; |
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243 if (sense) { |
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244 const gptr c = *q++; |
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245 *(q-1) = *q; |
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246 *q++ = c; |
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247 } else q += 2; |
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248 } |
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249 if (((b = p) == t) && ((t+1) == last)) { |
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250 NEXT(p2) = p2 + 1; ++runs; |
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251 b++; |
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252 } |
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253 q = r; |
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254 } while (b < t); |
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255 sense = !sense; |
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256 } |
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257 return runs; |
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258 } |
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259 |
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260 |
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261 /* The original merge sort, in use since 5.7, was as fast as, or faster than, |
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262 * qsort on many platforms, but slower than qsort, conspicuously so, |
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263 * on others. The most likely explanation was platform-specific |
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264 * differences in cache sizes and relative speeds. |
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265 * |
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266 * The quicksort divide-and-conquer algorithm guarantees that, as the |
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267 * problem is subdivided into smaller and smaller parts, the parts |
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268 * fit into smaller (and faster) caches. So it doesn't matter how |
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269 * many levels of cache exist, quicksort will "find" them, and, |
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270 * as long as smaller is faster, take advantage of them. |
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271 * |
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272 * By contrast, consider how the original mergesort algorithm worked. |
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273 * Suppose we have five runs (each typically of length 2 after dynprep). |
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274 * |
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275 * pass base aux |
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276 * 0 1 2 3 4 5 |
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277 * 1 12 34 5 |
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278 * 2 1234 5 |
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279 * 3 12345 |
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280 * 4 12345 |
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281 * |
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282 * Adjacent pairs are merged in "grand sweeps" through the input. |
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283 * This means, on pass 1, the records in runs 1 and 2 aren't revisited until |
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284 * runs 3 and 4 are merged and the runs from run 5 have been copied. |
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285 * The only cache that matters is one large enough to hold *all* the input. |
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286 * On some platforms, this may be many times slower than smaller caches. |
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287 * |
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288 * The following pseudo-code uses the same basic merge algorithm, |
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289 * but in a divide-and-conquer way. |
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290 * |
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291 * # merge $runs runs at offset $offset of list $list1 into $list2. |
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292 * # all unmerged runs ($runs == 1) originate in list $base. |
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293 * sub mgsort2 { |
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294 * my ($offset, $runs, $base, $list1, $list2) = @_; |
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295 * |
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296 * if ($runs == 1) { |
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297 * if ($list1 is $base) copy run to $list2 |
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298 * return offset of end of list (or copy) |
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299 * } else { |
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300 * $off2 = mgsort2($offset, $runs-($runs/2), $base, $list2, $list1) |
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301 * mgsort2($off2, $runs/2, $base, $list2, $list1) |
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302 * merge the adjacent runs at $offset of $list1 into $list2 |
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303 * return the offset of the end of the merged runs |
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304 * } |
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305 * } |
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306 * mgsort2(0, $runs, $base, $aux, $base); |
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307 * |
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308 * For our 5 runs, the tree of calls looks like |
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309 * |
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310 * 5 |
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311 * 3 2 |
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312 * 2 1 1 1 |
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313 * 1 1 |
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314 * |
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315 * 1 2 3 4 5 |
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316 * |
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317 * and the corresponding activity looks like |
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318 * |
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319 * copy runs 1 and 2 from base to aux |
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320 * merge runs 1 and 2 from aux to base |
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321 * (run 3 is where it belongs, no copy needed) |
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322 * merge runs 12 and 3 from base to aux |
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323 * (runs 4 and 5 are where they belong, no copy needed) |
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324 * merge runs 4 and 5 from base to aux |
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325 * merge runs 123 and 45 from aux to base |
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326 * |
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327 * Note that we merge runs 1 and 2 immediately after copying them, |
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328 * while they are still likely to be in fast cache. Similarly, |
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329 * run 3 is merged with run 12 while it still may be lingering in cache. |
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330 * This implementation should therefore enjoy much of the cache-friendly |
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331 * behavior that quicksort does. In addition, it does less copying |
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332 * than the original mergesort implementation (only runs 1 and 2 are copied) |
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333 * and the "balancing" of merges is better (merged runs comprise more nearly |
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334 * equal numbers of original runs). |
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335 * |
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336 * The actual cache-friendly implementation will use a pseudo-stack |
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337 * to avoid recursion, and will unroll processing of runs of length 2, |
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338 * but it is otherwise similar to the recursive implementation. |
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339 */ |
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340 |
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341 typedef struct { |
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342 IV offset; /* offset of 1st of 2 runs at this level */ |
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343 IV runs; /* how many runs must be combined into 1 */ |
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344 } off_runs; /* pseudo-stack element */ |
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345 |
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346 |
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347 static I32 |
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348 cmp_desc(pTHX_ gptr const a, gptr const b) |
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349 { |
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350 return -PL_sort_RealCmp(aTHX_ a, b); |
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351 } |
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352 |
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353 STATIC void |
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354 S_mergesortsv(pTHX_ gptr *base, size_t nmemb, SVCOMPARE_t cmp, U32 flags) |
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355 { |
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356 IV i, run, offset; |
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357 I32 sense, level; |
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358 gptr *f1, *f2, *t, *b, *p; |
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359 int iwhich; |
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360 gptr *aux; |
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361 gptr *p1; |
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362 gptr small[SMALLSORT]; |
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363 gptr *which[3]; |
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364 off_runs stack[60], *stackp; |
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365 SVCOMPARE_t savecmp = NULL; |
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366 |
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367 if (nmemb <= 1) return; /* sorted trivially */ |
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368 |
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369 if ((flags & SORTf_DESC) != 0) { |
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370 savecmp = PL_sort_RealCmp; /* Save current comparison routine, if any */ |
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371 PL_sort_RealCmp = cmp; /* Put comparison routine where cmp_desc can find it */ |
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372 cmp = cmp_desc; |
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373 } |
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374 |
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375 if (nmemb <= SMALLSORT) aux = small; /* use stack for aux array */ |
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376 else { Newx(aux,nmemb,gptr); } /* allocate auxiliary array */ |
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377 level = 0; |
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378 stackp = stack; |
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379 stackp->runs = dynprep(aTHX_ base, aux, nmemb, cmp); |
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380 stackp->offset = offset = 0; |
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381 which[0] = which[2] = base; |
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382 which[1] = aux; |
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383 for (;;) { |
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384 /* On levels where both runs have be constructed (stackp->runs == 0), |
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385 * merge them, and note the offset of their end, in case the offset |
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386 * is needed at the next level up. Hop up a level, and, |
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387 * as long as stackp->runs is 0, keep merging. |
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388 */ |
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389 IV runs = stackp->runs; |
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390 if (runs == 0) { |
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391 gptr *list1, *list2; |
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392 iwhich = level & 1; |
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393 list1 = which[iwhich]; /* area where runs are now */ |
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394 list2 = which[++iwhich]; /* area for merged runs */ |
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395 do { |
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396 gptr *l1, *l2, *tp2; |
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397 offset = stackp->offset; |
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398 f1 = p1 = list1 + offset; /* start of first run */ |
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399 p = tp2 = list2 + offset; /* where merged run will go */ |
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400 t = NEXT(p); /* where first run ends */ |
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401 f2 = l1 = POTHER(t, list2, list1); /* ... on the other side */ |
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402 t = NEXT(t); /* where second runs ends */ |
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403 l2 = POTHER(t, list2, list1); /* ... on the other side */ |
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404 offset = PNELEM(list2, t); |
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405 while (f1 < l1 && f2 < l2) { |
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406 /* If head 1 is larger than head 2, find ALL the elements |
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407 ** in list 2 strictly less than head1, write them all, |
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408 ** then head 1. Then compare the new heads, and repeat, |
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409 ** until one or both lists are exhausted. |
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410 ** |
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411 ** In all comparisons (after establishing |
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412 ** which head to merge) the item to merge |
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413 ** (at pointer q) is the first operand of |
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414 ** the comparison. When we want to know |
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415 ** if "q is strictly less than the other", |
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416 ** we can't just do |
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417 ** cmp(q, other) < 0 |
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418 ** because stability demands that we treat equality |
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419 ** as high when q comes from l2, and as low when |
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420 ** q was from l1. So we ask the question by doing |
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421 ** cmp(q, other) <= sense |
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422 ** and make sense == 0 when equality should look low, |
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423 ** and -1 when equality should look high. |
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424 */ |
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425 |
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426 gptr *q; |
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427 if (cmp(aTHX_ *f1, *f2) <= 0) { |
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428 q = f2; b = f1; t = l1; |
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429 sense = -1; |
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430 } else { |
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431 q = f1; b = f2; t = l2; |
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432 sense = 0; |
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433 } |
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434 |
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435 |
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436 /* ramp up |
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437 ** |
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438 ** Leave t at something strictly |
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439 ** greater than q (or at the end of the list), |
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440 ** and b at something strictly less than q. |
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441 */ |
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442 for (i = 1, run = 0 ;;) { |
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443 if ((p = PINDEX(b, i)) >= t) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
444 /* off the end */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
445 if (((p = PINDEX(t, -1)) > b) && |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
446 (cmp(aTHX_ *q, *p) <= sense)) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
447 t = p; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
448 else b = p; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
449 break; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
450 } else if (cmp(aTHX_ *q, *p) <= sense) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
451 t = p; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
452 break; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
453 } else b = p; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
454 if (++run >= RTHRESH) i += i; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
455 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
456 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
457 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
458 /* q is known to follow b and must be inserted before t. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
459 ** Increment b, so the range of possibilities is [b,t). |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
460 ** Round binary split down, to favor early appearance. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
461 ** Adjust b and t until q belongs just before t. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
462 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
463 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
464 b++; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
465 while (b < t) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
466 p = PINDEX(b, (PNELEM(b, t) - 1) / 2); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
467 if (cmp(aTHX_ *q, *p) <= sense) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
468 t = p; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
469 } else b = p + 1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
470 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
471 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
472 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
473 /* Copy all the strictly low elements */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
474 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
475 if (q == f1) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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diff
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|
476 FROMTOUPTO(f2, tp2, t); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
477 *tp2++ = *f1++; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
478 } else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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diff
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479 FROMTOUPTO(f1, tp2, t); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
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480 *tp2++ = *f2++; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
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481 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
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482 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
483 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
484 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
485 /* Run out remaining list */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
486 if (f1 == l1) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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487 if (f2 < l2) FROMTOUPTO(f2, tp2, l2); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
488 } else FROMTOUPTO(f1, tp2, l1); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
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489 p1 = NEXT(p1) = POTHER(tp2, list2, list1); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
490 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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|
491 if (--level == 0) goto done; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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changeset
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492 --stackp; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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493 t = list1; list1 = list2; list2 = t; /* swap lists */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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|
494 } while ((runs = stackp->runs) == 0); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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|
495 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
496 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
497 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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498 stackp->runs = 0; /* current run will finish level */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
499 /* While there are more than 2 runs remaining, |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
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|
500 * turn them into exactly 2 runs (at the "other" level), |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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|
501 * each made up of approximately half the runs. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
502 * Stack the second half for later processing, |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
503 * and set about producing the first half now. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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|
504 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
505 while (runs > 2) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
506 ++level; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
507 ++stackp; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
508 stackp->offset = offset; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
509 runs -= stackp->runs = runs / 2; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
510 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
511 /* We must construct a single run from 1 or 2 runs. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
512 * All the original runs are in which[0] == base. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
513 * The run we construct must end up in which[level&1]. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
514 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
515 iwhich = level & 1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
516 if (runs == 1) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
517 /* Constructing a single run from a single run. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
518 * If it's where it belongs already, there's nothing to do. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
519 * Otherwise, copy it to where it belongs. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
520 * A run of 1 is either a singleton at level 0, |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
521 * or the second half of a split 3. In neither event |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
522 * is it necessary to set offset. It will be set by the merge |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
523 * that immediately follows. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
524 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
525 if (iwhich) { /* Belongs in aux, currently in base */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
526 f1 = b = PINDEX(base, offset); /* where list starts */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
527 f2 = PINDEX(aux, offset); /* where list goes */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
528 t = NEXT(f2); /* where list will end */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
529 offset = PNELEM(aux, t); /* offset thereof */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
530 t = PINDEX(base, offset); /* where it currently ends */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
531 FROMTOUPTO(f1, f2, t); /* copy */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
532 NEXT(b) = t; /* set up parallel pointer */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
533 } else if (level == 0) goto done; /* single run at level 0 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
534 } else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
535 /* Constructing a single run from two runs. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
536 * The merge code at the top will do that. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
537 * We need only make sure the two runs are in the "other" array, |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
538 * so they'll end up in the correct array after the merge. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
539 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
540 ++level; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
541 ++stackp; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
542 stackp->offset = offset; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
543 stackp->runs = 0; /* take care of both runs, trigger merge */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
544 if (!iwhich) { /* Merged runs belong in aux, copy 1st */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
545 f1 = b = PINDEX(base, offset); /* where first run starts */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
546 f2 = PINDEX(aux, offset); /* where it will be copied */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
547 t = NEXT(f2); /* where first run will end */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
548 offset = PNELEM(aux, t); /* offset thereof */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
549 p = PINDEX(base, offset); /* end of first run */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
550 t = NEXT(t); /* where second run will end */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
551 t = PINDEX(base, PNELEM(aux, t)); /* where it now ends */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
552 FROMTOUPTO(f1, f2, t); /* copy both runs */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
553 NEXT(b) = p; /* paralleled pointer for 1st */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
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554 NEXT(p) = t; /* ... and for second */ |
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555 } |
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556 } |
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557 } |
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558 done: |
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559 if (aux != small) Safefree(aux); /* free iff allocated */ |
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560 if (flags) { |
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561 PL_sort_RealCmp = savecmp; /* Restore current comparison routine, if any */ |
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562 } |
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563 return; |
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564 } |
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565 |
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566 /* |
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567 * The quicksort implementation was derived from source code contributed |
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568 * by Tom Horsley. |
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569 * |
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570 * NOTE: this code was derived from Tom Horsley's qsort replacement |
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571 * and should not be confused with the original code. |
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572 */ |
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573 |
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574 /* Copyright (C) Tom Horsley, 1997. All rights reserved. |
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575 |
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576 Permission granted to distribute under the same terms as perl which are |
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577 (briefly): |
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578 |
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579 This program is free software; you can redistribute it and/or modify |
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580 it under the terms of either: |
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581 |
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582 a) the GNU General Public License as published by the Free |
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583 Software Foundation; either version 1, or (at your option) any |
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584 later version, or |
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585 |
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586 b) the "Artistic License" which comes with this Kit. |
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587 |
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588 Details on the perl license can be found in the perl source code which |
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589 may be located via the www.perl.com web page. |
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590 |
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591 This is the most wonderfulest possible qsort I can come up with (and |
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592 still be mostly portable) My (limited) tests indicate it consistently |
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593 does about 20% fewer calls to compare than does the qsort in the Visual |
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594 C++ library, other vendors may vary. |
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595 |
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596 Some of the ideas in here can be found in "Algorithms" by Sedgewick, |
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597 others I invented myself (or more likely re-invented since they seemed |
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598 pretty obvious once I watched the algorithm operate for a while). |
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599 |
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600 Most of this code was written while watching the Marlins sweep the Giants |
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601 in the 1997 National League Playoffs - no Braves fans allowed to use this |
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602 code (just kidding :-). |
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603 |
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604 I realize that if I wanted to be true to the perl tradition, the only |
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605 comment in this file would be something like: |
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606 |
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607 ...they shuffled back towards the rear of the line. 'No, not at the |
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608 rear!' the slave-driver shouted. 'Three files up. And stay there... |
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609 |
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610 However, I really needed to violate that tradition just so I could keep |
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611 track of what happens myself, not to mention some poor fool trying to |
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612 understand this years from now :-). |
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613 */ |
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614 |
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615 /* ********************************************************** Configuration */ |
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616 |
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617 #ifndef QSORT_ORDER_GUESS |
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618 #define QSORT_ORDER_GUESS 2 /* Select doubling version of the netBSD trick */ |
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619 #endif |
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620 |
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621 /* QSORT_MAX_STACK is the largest number of partitions that can be stacked up for |
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622 future processing - a good max upper bound is log base 2 of memory size |
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623 (32 on 32 bit machines, 64 on 64 bit machines, etc). In reality can |
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624 safely be smaller than that since the program is taking up some space and |
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625 most operating systems only let you grab some subset of contiguous |
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626 memory (not to mention that you are normally sorting data larger than |
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627 1 byte element size :-). |
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628 */ |
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629 #ifndef QSORT_MAX_STACK |
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630 #define QSORT_MAX_STACK 32 |
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631 #endif |
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632 |
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633 /* QSORT_BREAK_EVEN is the size of the largest partition we should insertion sort. |
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634 Anything bigger and we use qsort. If you make this too small, the qsort |
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635 will probably break (or become less efficient), because it doesn't expect |
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636 the middle element of a partition to be the same as the right or left - |
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637 you have been warned). |
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638 */ |
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639 #ifndef QSORT_BREAK_EVEN |
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640 #define QSORT_BREAK_EVEN 6 |
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641 #endif |
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642 |
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643 /* QSORT_PLAY_SAFE is the size of the largest partition we're willing |
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644 to go quadratic on. We innoculate larger partitions against |
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645 quadratic behavior by shuffling them before sorting. This is not |
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646 an absolute guarantee of non-quadratic behavior, but it would take |
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647 staggeringly bad luck to pick extreme elements as the pivot |
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648 from randomized data. |
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649 */ |
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650 #ifndef QSORT_PLAY_SAFE |
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651 #define QSORT_PLAY_SAFE 255 |
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652 #endif |
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653 |
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654 /* ************************************************************* Data Types */ |
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655 |
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656 /* hold left and right index values of a partition waiting to be sorted (the |
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657 partition includes both left and right - right is NOT one past the end or |
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658 anything like that). |
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659 */ |
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660 struct partition_stack_entry { |
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661 int left; |
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662 int right; |
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663 #ifdef QSORT_ORDER_GUESS |
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664 int qsort_break_even; |
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665 #endif |
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666 }; |
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667 |
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668 /* ******************************************************* Shorthand Macros */ |
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669 |
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670 /* Note that these macros will be used from inside the qsort function where |
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671 we happen to know that the variable 'elt_size' contains the size of an |
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672 array element and the variable 'temp' points to enough space to hold a |
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673 temp element and the variable 'array' points to the array being sorted |
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674 and 'compare' is the pointer to the compare routine. |
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675 |
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676 Also note that there are very many highly architecture specific ways |
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677 these might be sped up, but this is simply the most generally portable |
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678 code I could think of. |
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679 */ |
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680 |
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681 /* Return < 0 == 0 or > 0 as the value of elt1 is < elt2, == elt2, > elt2 |
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682 */ |
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683 #define qsort_cmp(elt1, elt2) \ |
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684 ((*compare)(aTHX_ array[elt1], array[elt2])) |
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685 |
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686 #ifdef QSORT_ORDER_GUESS |
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687 #define QSORT_NOTICE_SWAP swapped++; |
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688 #else |
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689 #define QSORT_NOTICE_SWAP |
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690 #endif |
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691 |
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692 /* swaps contents of array elements elt1, elt2. |
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693 */ |
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694 #define qsort_swap(elt1, elt2) \ |
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695 STMT_START { \ |
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696 QSORT_NOTICE_SWAP \ |
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697 temp = array[elt1]; \ |
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698 array[elt1] = array[elt2]; \ |
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699 array[elt2] = temp; \ |
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700 } STMT_END |
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701 |
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702 /* rotate contents of elt1, elt2, elt3 such that elt1 gets elt2, elt2 gets |
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703 elt3 and elt3 gets elt1. |
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704 */ |
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705 #define qsort_rotate(elt1, elt2, elt3) \ |
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706 STMT_START { \ |
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707 QSORT_NOTICE_SWAP \ |
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708 temp = array[elt1]; \ |
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709 array[elt1] = array[elt2]; \ |
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710 array[elt2] = array[elt3]; \ |
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711 array[elt3] = temp; \ |
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712 } STMT_END |
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713 |
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714 /* ************************************************************ Debug stuff */ |
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715 |
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716 #ifdef QSORT_DEBUG |
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717 |
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718 static void |
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719 break_here() |
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720 { |
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721 return; /* good place to set a breakpoint */ |
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722 } |
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723 |
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724 #define qsort_assert(t) (void)( (t) || (break_here(), 0) ) |
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725 |
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726 static void |
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727 doqsort_all_asserts( |
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728 void * array, |
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729 size_t num_elts, |
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730 size_t elt_size, |
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731 int (*compare)(const void * elt1, const void * elt2), |
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732 int pc_left, int pc_right, int u_left, int u_right) |
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733 { |
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734 int i; |
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735 |
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736 qsort_assert(pc_left <= pc_right); |
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737 qsort_assert(u_right < pc_left); |
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738 qsort_assert(pc_right < u_left); |
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739 for (i = u_right + 1; i < pc_left; ++i) { |
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740 qsort_assert(qsort_cmp(i, pc_left) < 0); |
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741 } |
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|
742 for (i = pc_left; i < pc_right; ++i) { |
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743 qsort_assert(qsort_cmp(i, pc_right) == 0); |
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744 } |
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745 for (i = pc_right + 1; i < u_left; ++i) { |
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746 qsort_assert(qsort_cmp(pc_right, i) < 0); |
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747 } |
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748 } |
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749 |
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750 #define qsort_all_asserts(PC_LEFT, PC_RIGHT, U_LEFT, U_RIGHT) \ |
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751 doqsort_all_asserts(array, num_elts, elt_size, compare, \ |
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752 PC_LEFT, PC_RIGHT, U_LEFT, U_RIGHT) |
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753 |
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|
754 #else |
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755 |
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|
756 #define qsort_assert(t) ((void)0) |
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757 |
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758 #define qsort_all_asserts(PC_LEFT, PC_RIGHT, U_LEFT, U_RIGHT) ((void)0) |
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759 |
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|
760 #endif |
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761 |
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762 /* ****************************************************************** qsort */ |
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763 |
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764 STATIC void /* the standard unstable (u) quicksort (qsort) */ |
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765 S_qsortsvu(pTHX_ SV ** array, size_t num_elts, SVCOMPARE_t compare) |
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766 { |
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767 SV * temp; |
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768 struct partition_stack_entry partition_stack[QSORT_MAX_STACK]; |
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769 int next_stack_entry = 0; |
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770 int part_left; |
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771 int part_right; |
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772 #ifdef QSORT_ORDER_GUESS |
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773 int qsort_break_even; |
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774 int swapped; |
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|
775 #endif |
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|
776 |
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777 PERL_ARGS_ASSERT_QSORTSVU; |
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778 |
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779 /* Make sure we actually have work to do. |
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<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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|
780 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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|
781 if (num_elts <= 1) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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|
782 return; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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changeset
|
783 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
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|
784 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
785 /* Inoculate large partitions against quadratic behavior */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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changeset
|
786 if (num_elts > QSORT_PLAY_SAFE) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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changeset
|
787 size_t n; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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changeset
|
788 SV ** const q = array; |
a16537d2fe07
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parents:
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|
789 for (n = num_elts; n > 1; ) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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|
790 const size_t j = (size_t)(n-- * Drand01()); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
791 temp = q[j]; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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|
792 q[j] = q[n]; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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|
793 q[n] = temp; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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|
794 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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|
795 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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changeset
|
796 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
797 /* Setup the initial partition definition and fall into the sorting loop |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
798 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
799 part_left = 0; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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|
800 part_right = (int)(num_elts - 1); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
801 #ifdef QSORT_ORDER_GUESS |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
802 qsort_break_even = QSORT_BREAK_EVEN; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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|
803 #else |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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|
804 #define qsort_break_even QSORT_BREAK_EVEN |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
805 #endif |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
806 for ( ; ; ) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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changeset
|
807 if ((part_right - part_left) >= qsort_break_even) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
808 /* OK, this is gonna get hairy, so lets try to document all the |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
809 concepts and abbreviations and variables and what they keep |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
810 track of: |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
811 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
812 pc: pivot chunk - the set of array elements we accumulate in the |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
813 middle of the partition, all equal in value to the original |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
814 pivot element selected. The pc is defined by: |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
815 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
816 pc_left - the leftmost array index of the pc |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
817 pc_right - the rightmost array index of the pc |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
818 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
819 we start with pc_left == pc_right and only one element |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
820 in the pivot chunk (but it can grow during the scan). |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
821 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
822 u: uncompared elements - the set of elements in the partition |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
823 we have not yet compared to the pivot value. There are two |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
824 uncompared sets during the scan - one to the left of the pc |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
825 and one to the right. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
826 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
827 u_right - the rightmost index of the left side's uncompared set |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
828 u_left - the leftmost index of the right side's uncompared set |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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changeset
|
829 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
830 The leftmost index of the left sides's uncompared set |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
831 doesn't need its own variable because it is always defined |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
832 by the leftmost edge of the whole partition (part_left). The |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
833 same goes for the rightmost edge of the right partition |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
834 (part_right). |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
835 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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changeset
|
836 We know there are no uncompared elements on the left once we |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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diff
changeset
|
837 get u_right < part_left and no uncompared elements on the |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
838 right once u_left > part_right. When both these conditions |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
839 are met, we have completed the scan of the partition. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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changeset
|
840 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
841 Any elements which are between the pivot chunk and the |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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changeset
|
842 uncompared elements should be less than the pivot value on |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
843 the left side and greater than the pivot value on the right |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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|
844 side (in fact, the goal of the whole algorithm is to arrange |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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diff
changeset
|
845 for that to be true and make the groups of less-than and |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
846 greater-then elements into new partitions to sort again). |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
847 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
848 As you marvel at the complexity of the code and wonder why it |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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|
849 has to be so confusing. Consider some of the things this level |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
850 of confusion brings: |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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changeset
|
851 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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|
852 Once I do a compare, I squeeze every ounce of juice out of it. I |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
853 never do compare calls I don't have to do, and I certainly never |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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changeset
|
854 do redundant calls. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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diff
changeset
|
855 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
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|
856 I also never swap any elements unless I can prove there is a |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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diff
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|
857 good reason. Many sort algorithms will swap a known value with |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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changeset
|
858 an uncompared value just to get things in the right place (or |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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changeset
|
859 avoid complexity :-), but that uncompared value, once it gets |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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|
860 compared, may then have to be swapped again. A lot of the |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
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|
861 complexity of this code is due to the fact that it never swaps |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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|
862 anything except compared values, and it only swaps them when the |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
863 compare shows they are out of position. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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diff
changeset
|
864 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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changeset
|
865 int pc_left, pc_right; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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|
866 int u_right, u_left; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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changeset
|
867 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
868 int s; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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changeset
|
869 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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changeset
|
870 pc_left = ((part_left + part_right) / 2); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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|
871 pc_right = pc_left; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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|
872 u_right = pc_left - 1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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changeset
|
873 u_left = pc_right + 1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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|
874 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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|
875 /* Qsort works best when the pivot value is also the median value |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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changeset
|
876 in the partition (unfortunately you can't find the median value |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
877 without first sorting :-), so to give the algorithm a helping |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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|
878 hand, we pick 3 elements and sort them and use the median value |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
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|
879 of that tiny set as the pivot value. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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|
880 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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|
881 Some versions of qsort like to use the left middle and right as |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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|
882 the 3 elements to sort so they can insure the ends of the |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
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|
883 partition will contain values which will stop the scan in the |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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changeset
|
884 compare loop, but when you have to call an arbitrarily complex |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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diff
changeset
|
885 routine to do a compare, its really better to just keep track of |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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|
886 array index values to know when you hit the edge of the |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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diff
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|
887 partition and avoid the extra compare. An even better reason to |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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diff
changeset
|
888 avoid using a compare call is the fact that you can drop off the |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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|
889 edge of the array if someone foolishly provides you with an |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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|
890 unstable compare function that doesn't always provide consistent |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
891 results. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
892 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
893 So, since it is simpler for us to compare the three adjacent |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
894 elements in the middle of the partition, those are the ones we |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
895 pick here (conveniently pointed at by u_right, pc_left, and |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
896 u_left). The values of the left, center, and right elements |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
897 are referred to as l c and r in the following comments. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
898 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
899 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
900 #ifdef QSORT_ORDER_GUESS |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
901 swapped = 0; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
902 #endif |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
903 s = qsort_cmp(u_right, pc_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
904 if (s < 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
905 /* l < c */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
906 s = qsort_cmp(pc_left, u_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
907 /* if l < c, c < r - already in order - nothing to do */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
908 if (s == 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
909 /* l < c, c == r - already in order, pc grows */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
910 ++pc_right; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
911 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
912 } else if (s > 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
913 /* l < c, c > r - need to know more */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
914 s = qsort_cmp(u_right, u_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
915 if (s < 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
916 /* l < c, c > r, l < r - swap c & r to get ordered */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
917 qsort_swap(pc_left, u_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
918 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
919 } else if (s == 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
920 /* l < c, c > r, l == r - swap c&r, grow pc */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
921 qsort_swap(pc_left, u_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
922 --pc_left; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
923 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
924 } else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
925 /* l < c, c > r, l > r - make lcr into rlc to get ordered */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
926 qsort_rotate(pc_left, u_right, u_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
927 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
928 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
929 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
930 } else if (s == 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
931 /* l == c */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
932 s = qsort_cmp(pc_left, u_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
933 if (s < 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
934 /* l == c, c < r - already in order, grow pc */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
935 --pc_left; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
936 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
937 } else if (s == 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
938 /* l == c, c == r - already in order, grow pc both ways */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
939 --pc_left; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
940 ++pc_right; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
941 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
942 } else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
943 /* l == c, c > r - swap l & r, grow pc */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
944 qsort_swap(u_right, u_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
945 ++pc_right; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
946 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
947 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
948 } else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
949 /* l > c */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
950 s = qsort_cmp(pc_left, u_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
951 if (s < 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
952 /* l > c, c < r - need to know more */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
953 s = qsort_cmp(u_right, u_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
954 if (s < 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
955 /* l > c, c < r, l < r - swap l & c to get ordered */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
956 qsort_swap(u_right, pc_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
957 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
958 } else if (s == 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
959 /* l > c, c < r, l == r - swap l & c, grow pc */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
960 qsort_swap(u_right, pc_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
961 ++pc_right; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
962 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
963 } else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
964 /* l > c, c < r, l > r - rotate lcr into crl to order */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
965 qsort_rotate(u_right, pc_left, u_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
966 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
967 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
968 } else if (s == 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
969 /* l > c, c == r - swap ends, grow pc */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
970 qsort_swap(u_right, u_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
971 --pc_left; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
972 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
973 } else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
974 /* l > c, c > r - swap ends to get in order */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
975 qsort_swap(u_right, u_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
976 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
977 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
978 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
979 /* We now know the 3 middle elements have been compared and |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
980 arranged in the desired order, so we can shrink the uncompared |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
981 sets on both sides |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
982 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
983 --u_right; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
984 ++u_left; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
985 qsort_all_asserts(pc_left, pc_right, u_left, u_right); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
986 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
987 /* The above massive nested if was the simple part :-). We now have |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
988 the middle 3 elements ordered and we need to scan through the |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
989 uncompared sets on either side, swapping elements that are on |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
990 the wrong side or simply shuffling equal elements around to get |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
991 all equal elements into the pivot chunk. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
992 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
993 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
994 for ( ; ; ) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
995 int still_work_on_left; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
996 int still_work_on_right; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
997 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
998 /* Scan the uncompared values on the left. If I find a value |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
999 equal to the pivot value, move it over so it is adjacent to |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1000 the pivot chunk and expand the pivot chunk. If I find a value |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1001 less than the pivot value, then just leave it - its already |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1002 on the correct side of the partition. If I find a greater |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1003 value, then stop the scan. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1004 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1005 while ((still_work_on_left = (u_right >= part_left))) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1006 s = qsort_cmp(u_right, pc_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1007 if (s < 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1008 --u_right; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1009 } else if (s == 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1010 --pc_left; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1011 if (pc_left != u_right) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1012 qsort_swap(u_right, pc_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1013 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1014 --u_right; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1015 } else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1016 break; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1017 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1018 qsort_assert(u_right < pc_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1019 qsort_assert(pc_left <= pc_right); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1020 qsort_assert(qsort_cmp(u_right + 1, pc_left) <= 0); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1021 qsort_assert(qsort_cmp(pc_left, pc_right) == 0); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1022 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1023 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1024 /* Do a mirror image scan of uncompared values on the right |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1025 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1026 while ((still_work_on_right = (u_left <= part_right))) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1027 s = qsort_cmp(pc_right, u_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1028 if (s < 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1029 ++u_left; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1030 } else if (s == 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1031 ++pc_right; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1032 if (pc_right != u_left) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1033 qsort_swap(pc_right, u_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1034 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1035 ++u_left; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1036 } else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1037 break; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1038 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1039 qsort_assert(u_left > pc_right); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1040 qsort_assert(pc_left <= pc_right); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1041 qsort_assert(qsort_cmp(pc_right, u_left - 1) <= 0); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1042 qsort_assert(qsort_cmp(pc_left, pc_right) == 0); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1043 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1044 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1045 if (still_work_on_left) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1046 /* I know I have a value on the left side which needs to be |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1047 on the right side, but I need to know more to decide |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1048 exactly the best thing to do with it. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1049 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1050 if (still_work_on_right) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1051 /* I know I have values on both side which are out of |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1052 position. This is a big win because I kill two birds |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1053 with one swap (so to speak). I can advance the |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1054 uncompared pointers on both sides after swapping both |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1055 of them into the right place. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1056 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1057 qsort_swap(u_right, u_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1058 --u_right; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1059 ++u_left; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1060 qsort_all_asserts(pc_left, pc_right, u_left, u_right); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1061 } else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1062 /* I have an out of position value on the left, but the |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1063 right is fully scanned, so I "slide" the pivot chunk |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1064 and any less-than values left one to make room for the |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1065 greater value over on the right. If the out of position |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1066 value is immediately adjacent to the pivot chunk (there |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1067 are no less-than values), I can do that with a swap, |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1068 otherwise, I have to rotate one of the less than values |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1069 into the former position of the out of position value |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1070 and the right end of the pivot chunk into the left end |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1071 (got all that?). |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1072 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1073 --pc_left; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1074 if (pc_left == u_right) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1075 qsort_swap(u_right, pc_right); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1076 qsort_all_asserts(pc_left, pc_right-1, u_left, u_right-1); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1077 } else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1078 qsort_rotate(u_right, pc_left, pc_right); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1079 qsort_all_asserts(pc_left, pc_right-1, u_left, u_right-1); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1080 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1081 --pc_right; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1082 --u_right; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1083 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1084 } else if (still_work_on_right) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1085 /* Mirror image of complex case above: I have an out of |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1086 position value on the right, but the left is fully |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1087 scanned, so I need to shuffle things around to make room |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1088 for the right value on the left. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1089 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1090 ++pc_right; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1091 if (pc_right == u_left) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1092 qsort_swap(u_left, pc_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1093 qsort_all_asserts(pc_left+1, pc_right, u_left+1, u_right); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1094 } else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1095 qsort_rotate(pc_right, pc_left, u_left); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1096 qsort_all_asserts(pc_left+1, pc_right, u_left+1, u_right); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1097 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1098 ++pc_left; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1099 ++u_left; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1100 } else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1101 /* No more scanning required on either side of partition, |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1102 break out of loop and figure out next set of partitions |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1103 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1104 break; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1105 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1106 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1107 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1108 /* The elements in the pivot chunk are now in the right place. They |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1109 will never move or be compared again. All I have to do is decide |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1110 what to do with the stuff to the left and right of the pivot |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1111 chunk. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1112 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1113 Notes on the QSORT_ORDER_GUESS ifdef code: |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1114 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1115 1. If I just built these partitions without swapping any (or |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1116 very many) elements, there is a chance that the elements are |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
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|
1117 already ordered properly (being properly ordered will |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1118 certainly result in no swapping, but the converse can't be |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1119 proved :-). |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1120 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1121 2. A (properly written) insertion sort will run faster on |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1122 already ordered data than qsort will. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1123 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1124 3. Perhaps there is some way to make a good guess about |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1125 switching to an insertion sort earlier than partition size 6 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1126 (for instance - we could save the partition size on the stack |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1127 and increase the size each time we find we didn't swap, thus |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1128 switching to insertion sort earlier for partitions with a |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
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|
1129 history of not swapping). |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1130 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1131 4. Naturally, if I just switch right away, it will make |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1132 artificial benchmarks with pure ascending (or descending) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1133 data look really good, but is that a good reason in general? |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1134 Hard to say... |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1135 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
1136 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1137 #ifdef QSORT_ORDER_GUESS |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1138 if (swapped < 3) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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changeset
|
1139 #if QSORT_ORDER_GUESS == 1 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1140 qsort_break_even = (part_right - part_left) + 1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1141 #endif |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1142 #if QSORT_ORDER_GUESS == 2 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1143 qsort_break_even *= 2; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1144 #endif |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1145 #if QSORT_ORDER_GUESS == 3 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1146 const int prev_break = qsort_break_even; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1147 qsort_break_even *= qsort_break_even; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1148 if (qsort_break_even < prev_break) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1149 qsort_break_even = (part_right - part_left) + 1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1150 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1151 #endif |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1152 } else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1153 qsort_break_even = QSORT_BREAK_EVEN; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1154 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1155 #endif |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1156 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1157 if (part_left < pc_left) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1158 /* There are elements on the left which need more processing. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1159 Check the right as well before deciding what to do. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1160 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1161 if (pc_right < part_right) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1162 /* We have two partitions to be sorted. Stack the biggest one |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1163 and process the smallest one on the next iteration. This |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1164 minimizes the stack height by insuring that any additional |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1165 stack entries must come from the smallest partition which |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1166 (because it is smallest) will have the fewest |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1167 opportunities to generate additional stack entries. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1168 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1169 if ((part_right - pc_right) > (pc_left - part_left)) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1170 /* stack the right partition, process the left */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1171 partition_stack[next_stack_entry].left = pc_right + 1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1172 partition_stack[next_stack_entry].right = part_right; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1173 #ifdef QSORT_ORDER_GUESS |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1174 partition_stack[next_stack_entry].qsort_break_even = qsort_break_even; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1175 #endif |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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diff
changeset
|
1176 part_right = pc_left - 1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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diff
changeset
|
1177 } else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1178 /* stack the left partition, process the right */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1179 partition_stack[next_stack_entry].left = part_left; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1180 partition_stack[next_stack_entry].right = pc_left - 1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1181 #ifdef QSORT_ORDER_GUESS |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1182 partition_stack[next_stack_entry].qsort_break_even = qsort_break_even; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1183 #endif |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1184 part_left = pc_right + 1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1185 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1186 qsort_assert(next_stack_entry < QSORT_MAX_STACK); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1187 ++next_stack_entry; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1188 } else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1189 /* The elements on the left are the only remaining elements |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1190 that need sorting, arrange for them to be processed as the |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1191 next partition. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1192 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1193 part_right = pc_left - 1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1194 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1195 } else if (pc_right < part_right) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1196 /* There is only one chunk on the right to be sorted, make it |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1197 the new partition and loop back around. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1198 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1199 part_left = pc_right + 1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
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|
1200 } else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1201 /* This whole partition wound up in the pivot chunk, so |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1202 we need to get a new partition off the stack. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1203 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1204 if (next_stack_entry == 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1205 /* the stack is empty - we are done */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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diff
changeset
|
1206 break; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1207 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1208 --next_stack_entry; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1209 part_left = partition_stack[next_stack_entry].left; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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diff
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|
1210 part_right = partition_stack[next_stack_entry].right; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1211 #ifdef QSORT_ORDER_GUESS |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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|
1212 qsort_break_even = partition_stack[next_stack_entry].qsort_break_even; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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diff
changeset
|
1213 #endif |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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diff
changeset
|
1214 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1215 } else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1216 /* This partition is too small to fool with qsort complexity, just |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1217 do an ordinary insertion sort to minimize overhead. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1218 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1219 int i; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1220 /* Assume 1st element is in right place already, and start checking |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1221 at 2nd element to see where it should be inserted. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1222 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1223 for (i = part_left + 1; i <= part_right; ++i) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1224 int j; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1225 /* Scan (backwards - just in case 'i' is already in right place) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1226 through the elements already sorted to see if the ith element |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1227 belongs ahead of one of them. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1228 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1229 for (j = i - 1; j >= part_left; --j) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1230 if (qsort_cmp(i, j) >= 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1231 /* i belongs right after j |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1232 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1233 break; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1234 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1235 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1236 ++j; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1237 if (j != i) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1238 /* Looks like we really need to move some things |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1239 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1240 int k; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1241 temp = array[i]; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1242 for (k = i - 1; k >= j; --k) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1243 array[k + 1] = array[k]; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1244 array[j] = temp; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1245 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1246 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1247 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1248 /* That partition is now sorted, grab the next one, or get out |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1249 of the loop if there aren't any more. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1250 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1251 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1252 if (next_stack_entry == 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1253 /* the stack is empty - we are done */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1254 break; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1255 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1256 --next_stack_entry; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1257 part_left = partition_stack[next_stack_entry].left; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1258 part_right = partition_stack[next_stack_entry].right; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1259 #ifdef QSORT_ORDER_GUESS |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1260 qsort_break_even = partition_stack[next_stack_entry].qsort_break_even; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1261 #endif |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1262 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1263 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1264 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1265 /* Believe it or not, the array is sorted at this point! */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1266 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1267 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1268 /* Stabilize what is, presumably, an otherwise unstable sort method. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1269 * We do that by allocating (or having on hand) an array of pointers |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1270 * that is the same size as the original array of elements to be sorted. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1271 * We initialize this parallel array with the addresses of the original |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1272 * array elements. This indirection can make you crazy. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1273 * Some pictures can help. After initializing, we have |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1274 * |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1275 * indir list1 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1276 * +----+ +----+ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1277 * | | --------------> | | ------> first element to be sorted |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1278 * +----+ +----+ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1279 * | | --------------> | | ------> second element to be sorted |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1280 * +----+ +----+ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1281 * | | --------------> | | ------> third element to be sorted |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1282 * +----+ +----+ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1283 * ... |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1284 * +----+ +----+ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1285 * | | --------------> | | ------> n-1st element to be sorted |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1286 * +----+ +----+ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1287 * | | --------------> | | ------> n-th element to be sorted |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1288 * +----+ +----+ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1289 * |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1290 * During the sort phase, we leave the elements of list1 where they are, |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1291 * and sort the pointers in the indirect array in the same order determined |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1292 * by the original comparison routine on the elements pointed to. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1293 * Because we don't move the elements of list1 around through |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1294 * this phase, we can break ties on elements that compare equal |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1295 * using their address in the list1 array, ensuring stability. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1296 * This leaves us with something looking like |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1297 * |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1298 * indir list1 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1299 * +----+ +----+ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1300 * | | --+ +---> | | ------> first element to be sorted |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1301 * +----+ | | +----+ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1302 * | | --|-------|---> | | ------> second element to be sorted |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1303 * +----+ | | +----+ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1304 * | | --|-------+ +-> | | ------> third element to be sorted |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1305 * +----+ | | +----+ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1306 * ... |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1307 * +----+ | | | | +----+ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1308 * | | ---|-+ | +--> | | ------> n-1st element to be sorted |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1309 * +----+ | | +----+ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1310 * | | ---+ +----> | | ------> n-th element to be sorted |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1311 * +----+ +----+ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1312 * |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1313 * where the i-th element of the indirect array points to the element |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1314 * that should be i-th in the sorted array. After the sort phase, |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1315 * we have to put the elements of list1 into the places |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1316 * dictated by the indirect array. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1317 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1318 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1319 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1320 static I32 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1321 cmpindir(pTHX_ gptr const a, gptr const b) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1322 { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1323 gptr * const ap = (gptr *)a; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1324 gptr * const bp = (gptr *)b; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1325 const I32 sense = PL_sort_RealCmp(aTHX_ *ap, *bp); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1326 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1327 if (sense) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1328 return sense; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1329 return (ap > bp) ? 1 : ((ap < bp) ? -1 : 0); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1330 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1331 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1332 static I32 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1333 cmpindir_desc(pTHX_ gptr const a, gptr const b) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1334 { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1335 gptr * const ap = (gptr *)a; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1336 gptr * const bp = (gptr *)b; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1337 const I32 sense = PL_sort_RealCmp(aTHX_ *ap, *bp); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1338 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
1339 /* Reverse the default */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1340 if (sense) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1341 return -sense; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1342 /* But don't reverse the stability test. */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1343 return (ap > bp) ? 1 : ((ap < bp) ? -1 : 0); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1344 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1345 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1346 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1347 STATIC void |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1348 S_qsortsv(pTHX_ gptr *list1, size_t nmemb, SVCOMPARE_t cmp, U32 flags) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1349 { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1350 if ((flags & SORTf_STABLE) != 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1351 gptr **pp, *q; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1352 size_t n, j, i; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1353 gptr *small[SMALLSORT], **indir, tmp; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1354 SVCOMPARE_t savecmp; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1355 if (nmemb <= 1) return; /* sorted trivially */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1356 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1357 /* Small arrays can use the stack, big ones must be allocated */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1358 if (nmemb <= SMALLSORT) indir = small; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1359 else { Newx(indir, nmemb, gptr *); } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1360 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1361 /* Copy pointers to original array elements into indirect array */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1362 for (n = nmemb, pp = indir, q = list1; n--; ) *pp++ = q++; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1363 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1364 savecmp = PL_sort_RealCmp; /* Save current comparison routine, if any */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1365 PL_sort_RealCmp = cmp; /* Put comparison routine where cmpindir can find it */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1366 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1367 /* sort, with indirection */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1368 if (flags & SORTf_DESC) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1369 qsortsvu((gptr *)indir, nmemb, cmpindir_desc); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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|
1370 else |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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diff
changeset
|
1371 qsortsvu((gptr *)indir, nmemb, cmpindir); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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changeset
|
1372 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1373 pp = indir; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1374 q = list1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1375 for (n = nmemb; n--; ) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1376 /* Assert A: all elements of q with index > n are already |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1377 * in place. This is vacuously true at the start, and we |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1378 * put element n where it belongs below (if it wasn't |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
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|
1379 * already where it belonged). Assert B: we only move |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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diff
changeset
|
1380 * elements that aren't where they belong, |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1381 * so, by A, we never tamper with elements above n. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1382 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1383 j = pp[n] - q; /* This sets j so that q[j] is |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1384 * at pp[n]. *pp[j] belongs in |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1385 * q[j], by construction. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1386 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1387 if (n != j) { /* all's well if n == j */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1388 tmp = q[j]; /* save what's in q[j] */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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changeset
|
1389 do { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1390 q[j] = *pp[j]; /* put *pp[j] where it belongs */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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changeset
|
1391 i = pp[j] - q; /* the index in q of the element |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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changeset
|
1392 * just moved */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1393 pp[j] = q + j; /* this is ok now */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
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changeset
|
1394 } while ((j = i) != n); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1395 /* There are only finitely many (nmemb) addresses |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1396 * in the pp array. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1397 * So we must eventually revisit an index we saw before. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1398 * Suppose the first revisited index is k != n. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1399 * An index is visited because something else belongs there. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1400 * If we visit k twice, then two different elements must |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
1401 * belong in the same place, which cannot be. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1402 * So j must get back to n, the loop terminates, |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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|
1403 * and we put the saved element where it belongs. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1404 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1405 q[n] = tmp; /* put what belongs into |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1406 * the n-th element */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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changeset
|
1407 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1408 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
1409 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1410 /* free iff allocated */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1411 if (indir != small) { Safefree(indir); } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1412 /* restore prevailing comparison routine */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1413 PL_sort_RealCmp = savecmp; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1414 } else if ((flags & SORTf_DESC) != 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1415 const SVCOMPARE_t savecmp = PL_sort_RealCmp; /* Save current comparison routine, if any */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1416 PL_sort_RealCmp = cmp; /* Put comparison routine where cmp_desc can find it */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1417 cmp = cmp_desc; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1418 qsortsvu(list1, nmemb, cmp); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1419 /* restore prevailing comparison routine */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1420 PL_sort_RealCmp = savecmp; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1421 } else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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changeset
|
1422 qsortsvu(list1, nmemb, cmp); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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diff
changeset
|
1423 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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changeset
|
1424 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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changeset
|
1425 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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changeset
|
1426 /* |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1427 =head1 Array Manipulation Functions |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
1428 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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changeset
|
1429 =for apidoc sortsv |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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changeset
|
1430 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
1431 Sort an array. Here is an example: |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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changeset
|
1432 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
1433 sortsv(AvARRAY(av), av_top_index(av)+1, Perl_sv_cmp_locale); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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changeset
|
1434 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
1435 Currently this always uses mergesort. See sortsv_flags for a more |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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changeset
|
1436 flexible routine. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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changeset
|
1437 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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diff
changeset
|
1438 =cut |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1439 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1440 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1441 void |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1442 Perl_sortsv(pTHX_ SV **array, size_t nmemb, SVCOMPARE_t cmp) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1443 { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1444 PERL_ARGS_ASSERT_SORTSV; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1445 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1446 sortsv_flags(array, nmemb, cmp, 0); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1447 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1448 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1449 /* |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1450 =for apidoc sortsv_flags |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1451 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1452 Sort an array, with various options. |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1453 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1454 =cut |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1455 */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1456 void |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1457 Perl_sortsv_flags(pTHX_ SV **array, size_t nmemb, SVCOMPARE_t cmp, U32 flags) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1458 { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1459 PERL_ARGS_ASSERT_SORTSV_FLAGS; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1460 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1461 if (flags & SORTf_QSORT) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1462 S_qsortsv(aTHX_ array, nmemb, cmp, flags); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1463 else |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1464 S_mergesortsv(aTHX_ array, nmemb, cmp, flags); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1465 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1466 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1467 #define SvNSIOK(sv) ((SvFLAGS(sv) & SVf_NOK) || ((SvFLAGS(sv) & (SVf_IOK|SVf_IVisUV)) == SVf_IOK)) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1468 #define SvSIOK(sv) ((SvFLAGS(sv) & (SVf_IOK|SVf_IVisUV)) == SVf_IOK) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1469 #define SvNSIV(sv) ( SvNOK(sv) ? SvNVX(sv) : ( SvSIOK(sv) ? SvIVX(sv) : sv_2nv(sv) ) ) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1470 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1471 PP(pp_sort) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1472 { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1473 dSP; dMARK; dORIGMARK; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1474 SV **p1 = ORIGMARK+1, **p2; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1475 SSize_t max, i; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1476 AV* av = NULL; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1477 GV *gv; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1478 CV *cv = NULL; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1479 I32 gimme = GIMME_V; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1480 OP* const nextop = PL_op->op_next; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1481 I32 overloading = 0; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1482 bool hasargs = FALSE; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1483 bool copytmps; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1484 I32 is_xsub = 0; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1485 I32 sorting_av = 0; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1486 const U8 priv = PL_op->op_private; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1487 const U8 flags = PL_op->op_flags; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1488 U32 sort_flags = 0; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1489 void (*sortsvp)(pTHX_ SV **array, size_t nmemb, SVCOMPARE_t cmp, U32 flags) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1490 = Perl_sortsv_flags; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1491 I32 all_SIVs = 1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1492 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1493 if ((priv & OPpSORT_DESCEND) != 0) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1494 sort_flags |= SORTf_DESC; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1495 if ((priv & OPpSORT_QSORT) != 0) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1496 sort_flags |= SORTf_QSORT; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1497 if ((priv & OPpSORT_STABLE) != 0) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1498 sort_flags |= SORTf_STABLE; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1499 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1500 if (gimme != G_ARRAY) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1501 SP = MARK; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1502 EXTEND(SP,1); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1503 RETPUSHUNDEF; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1504 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1505 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1506 ENTER; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1507 SAVEVPTR(PL_sortcop); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1508 if (flags & OPf_STACKED) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1509 if (flags & OPf_SPECIAL) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1510 OP *nullop = OpSIBLING(cLISTOP->op_first); /* pass pushmark */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1511 assert(nullop->op_type == OP_NULL); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1512 PL_sortcop = nullop->op_next; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1513 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1514 else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1515 GV *autogv = NULL; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1516 HV *stash; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1517 cv = sv_2cv(*++MARK, &stash, &gv, GV_ADD); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1518 check_cv: |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1519 if (cv && SvPOK(cv)) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1520 const char * const proto = SvPV_nolen_const(MUTABLE_SV(cv)); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1521 if (proto && strEQ(proto, "$$")) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1522 hasargs = TRUE; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1523 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1524 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1525 if (cv && CvISXSUB(cv) && CvXSUB(cv)) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1526 is_xsub = 1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1527 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1528 else if (!(cv && CvROOT(cv))) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1529 if (gv) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1530 goto autoload; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1531 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1532 else if (!CvANON(cv) && (gv = CvGV(cv))) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1533 if (cv != GvCV(gv)) cv = GvCV(gv); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1534 autoload: |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1535 if (!autogv && ( |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1536 autogv = gv_autoload_pvn( |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1537 GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1538 GvNAMEUTF8(gv) ? SVf_UTF8 : 0 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1539 ) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1540 )) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1541 cv = GvCVu(autogv); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1542 goto check_cv; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1543 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1544 else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1545 SV *tmpstr = sv_newmortal(); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1546 gv_efullname3(tmpstr, gv, NULL); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1547 DIE(aTHX_ "Undefined sort subroutine \"%"SVf"\" called", |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1548 SVfARG(tmpstr)); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1549 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1550 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1551 else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1552 DIE(aTHX_ "Undefined subroutine in sort"); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1553 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1554 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1555 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1556 if (is_xsub) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1557 PL_sortcop = (OP*)cv; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1558 else |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1559 PL_sortcop = CvSTART(cv); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1560 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1561 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1562 else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1563 PL_sortcop = NULL; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1564 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1565 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1566 /* optimiser converts "@a = sort @a" to "sort \@a"; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1567 * in case of tied @a, pessimise: push (@a) onto stack, then assign |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1568 * result back to @a at the end of this function */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1569 if (priv & OPpSORT_INPLACE) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1570 assert( MARK+1 == SP && *SP && SvTYPE(*SP) == SVt_PVAV); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1571 (void)POPMARK; /* remove mark associated with ex-OP_AASSIGN */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1572 av = MUTABLE_AV((*SP)); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1573 max = AvFILL(av) + 1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1574 if (SvMAGICAL(av)) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1575 MEXTEND(SP, max); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1576 for (i=0; i < max; i++) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1577 SV **svp = av_fetch(av, i, FALSE); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1578 *SP++ = (svp) ? *svp : NULL; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1579 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1580 SP--; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1581 p1 = p2 = SP - (max-1); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1582 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1583 else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1584 if (SvREADONLY(av)) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1585 Perl_croak_no_modify(); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1586 else |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1587 { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1588 SvREADONLY_on(av); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1589 save_pushptr((void *)av, SAVEt_READONLY_OFF); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1590 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1591 p1 = p2 = AvARRAY(av); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1592 sorting_av = 1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1593 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1594 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1595 else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1596 p2 = MARK+1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1597 max = SP - MARK; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1598 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1599 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1600 /* shuffle stack down, removing optional initial cv (p1!=p2), plus |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1601 * any nulls; also stringify or converting to integer or number as |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1602 * required any args */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1603 copytmps = !sorting_av && PL_sortcop; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1604 for (i=max; i > 0 ; i--) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1605 if ((*p1 = *p2++)) { /* Weed out nulls. */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1606 if (copytmps && SvPADTMP(*p1)) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1607 *p1 = sv_mortalcopy(*p1); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1608 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1609 SvTEMP_off(*p1); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1610 if (!PL_sortcop) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1611 if (priv & OPpSORT_NUMERIC) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1612 if (priv & OPpSORT_INTEGER) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1613 if (!SvIOK(*p1)) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1614 (void)sv_2iv_flags(*p1, SV_GMAGIC|SV_SKIP_OVERLOAD); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1615 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1616 else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1617 if (!SvNSIOK(*p1)) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1618 (void)sv_2nv_flags(*p1, SV_GMAGIC|SV_SKIP_OVERLOAD); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1619 if (all_SIVs && !SvSIOK(*p1)) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1620 all_SIVs = 0; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1621 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1622 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1623 else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1624 if (!SvPOK(*p1)) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1625 (void)sv_2pv_flags(*p1, 0, |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1626 SV_GMAGIC|SV_CONST_RETURN|SV_SKIP_OVERLOAD); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1627 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1628 if (SvAMAGIC(*p1)) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1629 overloading = 1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1630 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1631 p1++; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1632 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1633 else |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1634 max--; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1635 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1636 if (sorting_av) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1637 AvFILLp(av) = max-1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1638 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1639 if (max > 1) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1640 SV **start; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1641 if (PL_sortcop) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1642 PERL_CONTEXT *cx; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1643 SV** newsp; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1644 const bool oldcatch = CATCH_GET; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1645 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1646 SAVETMPS; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1647 SAVEOP(); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1648 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1649 CATCH_SET(TRUE); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1650 PUSHSTACKi(PERLSI_SORT); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1651 if (!hasargs && !is_xsub) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1652 SAVEGENERICSV(PL_firstgv); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1653 SAVEGENERICSV(PL_secondgv); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1654 PL_firstgv = MUTABLE_GV(SvREFCNT_inc( |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1655 gv_fetchpvs("a", GV_ADD|GV_NOTQUAL, SVt_PV) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1656 )); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1657 PL_secondgv = MUTABLE_GV(SvREFCNT_inc( |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1658 gv_fetchpvs("b", GV_ADD|GV_NOTQUAL, SVt_PV) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1659 )); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1660 SAVESPTR(GvSV(PL_firstgv)); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1661 SAVESPTR(GvSV(PL_secondgv)); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1662 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1663 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1664 PUSHBLOCK(cx, CXt_NULL, PL_stack_base); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1665 if (!(flags & OPf_SPECIAL)) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1666 cx->cx_type = CXt_SUB; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1667 cx->blk_gimme = G_SCALAR; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1668 /* If our comparison routine is already active (CvDEPTH is |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1669 * is not 0), then PUSHSUB does not increase the refcount, |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1670 * so we have to do it ourselves, because the LEAVESUB fur- |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1671 * ther down lowers it. */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1672 if (CvDEPTH(cv)) SvREFCNT_inc_simple_void_NN(cv); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1673 PUSHSUB(cx); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1674 if (!is_xsub) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1675 PADLIST * const padlist = CvPADLIST(cv); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1676 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1677 if (++CvDEPTH(cv) >= 2) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1678 PERL_STACK_OVERFLOW_CHECK(); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1679 pad_push(padlist, CvDEPTH(cv)); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1680 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1681 SAVECOMPPAD(); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1682 PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1683 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1684 if (hasargs) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1685 /* This is mostly copied from pp_entersub */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1686 AV * const av = MUTABLE_AV(PAD_SVl(0)); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1687 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1688 cx->blk_sub.savearray = GvAV(PL_defgv); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1689 GvAV(PL_defgv) = MUTABLE_AV(SvREFCNT_inc_simple(av)); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1690 CX_CURPAD_SAVE(cx->blk_sub); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1691 cx->blk_sub.argarray = av; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1692 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1693 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1694 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1695 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1696 cx->cx_type |= CXp_MULTICALL; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1697 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1698 start = p1 - max; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1699 sortsvp(aTHX_ start, max, |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1700 (is_xsub ? S_sortcv_xsub : hasargs ? S_sortcv_stacked : S_sortcv), |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1701 sort_flags); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1702 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1703 if (!(flags & OPf_SPECIAL)) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1704 SV *sv; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1705 /* Reset cx, in case the context stack has been |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1706 reallocated. */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1707 cx = &cxstack[cxstack_ix]; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1708 POPSUB(cx, sv); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1709 LEAVESUB(sv); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1710 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1711 POPBLOCK(cx,PL_curpm); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1712 PL_stack_sp = newsp; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1713 POPSTACK; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1714 CATCH_SET(oldcatch); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1715 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1716 else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1717 MEXTEND(SP, 20); /* Can't afford stack realloc on signal. */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1718 start = sorting_av ? AvARRAY(av) : ORIGMARK+1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1719 sortsvp(aTHX_ start, max, |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1720 (priv & OPpSORT_NUMERIC) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1721 ? ( ( ( priv & OPpSORT_INTEGER) || all_SIVs) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1722 ? ( overloading ? S_amagic_i_ncmp : S_sv_i_ncmp) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1723 : ( overloading ? S_amagic_ncmp : S_sv_ncmp ) ) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1724 : ( |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1725 #ifdef USE_LOCALE_COLLATE |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1726 IN_LC_RUNTIME(LC_COLLATE) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1727 ? ( overloading |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1728 ? (SVCOMPARE_t)S_amagic_cmp_locale |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1729 : (SVCOMPARE_t)sv_cmp_locale_static) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1730 : |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1731 #endif |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1732 ( overloading ? (SVCOMPARE_t)S_amagic_cmp : (SVCOMPARE_t)sv_cmp_static)), |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1733 sort_flags); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1734 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1735 if ((priv & OPpSORT_REVERSE) != 0) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1736 SV **q = start+max-1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1737 while (start < q) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1738 SV * const tmp = *start; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1739 *start++ = *q; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1740 *q-- = tmp; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1741 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1742 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1743 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1744 if (sorting_av) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1745 SvREADONLY_off(av); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1746 else if (av && !sorting_av) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1747 /* simulate pp_aassign of tied AV */ |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1748 SV** const base = MARK+1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1749 for (i=0; i < max; i++) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1750 base[i] = newSVsv(base[i]); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1751 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1752 av_clear(av); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1753 av_extend(av, max); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1754 for (i=0; i < max; i++) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1755 SV * const sv = base[i]; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1756 SV ** const didstore = av_store(av, i, sv); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1757 if (SvSMAGICAL(sv)) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1758 mg_set(sv); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1759 if (!didstore) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1760 sv_2mortal(sv); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1761 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1762 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1763 LEAVE; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1764 PL_stack_sp = ORIGMARK + (sorting_av ? 0 : max); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1765 return nextop; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1766 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1767 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1768 static I32 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1769 S_sortcv(pTHX_ SV *const a, SV *const b) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1770 { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1771 const I32 oldsaveix = PL_savestack_ix; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1772 const I32 oldscopeix = PL_scopestack_ix; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1773 I32 result; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1774 SV *resultsv; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1775 PMOP * const pm = PL_curpm; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1776 OP * const sortop = PL_op; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1777 COP * const cop = PL_curcop; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1778 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1779 PERL_ARGS_ASSERT_SORTCV; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1780 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1781 GvSV(PL_firstgv) = a; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1782 GvSV(PL_secondgv) = b; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1783 PL_stack_sp = PL_stack_base; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1784 PL_op = PL_sortcop; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1785 CALLRUNOPS(aTHX); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1786 PL_op = sortop; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1787 PL_curcop = cop; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1788 if (PL_stack_sp != PL_stack_base + 1) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1789 assert(PL_stack_sp == PL_stack_base); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1790 resultsv = &PL_sv_undef; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1791 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1792 else resultsv = *PL_stack_sp; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
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changeset
|
1793 if (SvNIOK_nog(resultsv)) result = SvIV(resultsv); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
1794 else { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
1795 ENTER; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1796 SAVEVPTR(PL_curpad); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1797 PL_curpad = 0; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1798 result = SvIV(resultsv); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1799 LEAVE; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
1800 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1801 while (PL_scopestack_ix > oldscopeix) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
1802 LEAVE; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
1803 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1804 leave_scope(oldsaveix); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1805 PL_curpm = pm; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
1806 return result; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1807 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
1808 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1809 static I32 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1810 S_sortcv_stacked(pTHX_ SV *const a, SV *const b) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1811 { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1812 const I32 oldsaveix = PL_savestack_ix; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1813 const I32 oldscopeix = PL_scopestack_ix; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1814 I32 result; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1815 AV * const av = GvAV(PL_defgv); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1816 PMOP * const pm = PL_curpm; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1817 OP * const sortop = PL_op; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1818 COP * const cop = PL_curcop; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1819 SV **pad; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
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changeset
|
1820 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1821 PERL_ARGS_ASSERT_SORTCV_STACKED; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1822 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1823 if (AvREAL(av)) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1824 av_clear(av); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1825 AvREAL_off(av); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1826 AvREIFY_on(av); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1827 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1828 if (AvMAX(av) < 1) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1829 SV **ary = AvALLOC(av); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1830 if (AvARRAY(av) != ary) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1831 AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1832 AvARRAY(av) = ary; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1833 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1834 if (AvMAX(av) < 1) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1835 AvMAX(av) = 1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1836 Renew(ary,2,SV*); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1837 AvARRAY(av) = ary; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1838 AvALLOC(av) = ary; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1839 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1840 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1841 AvFILLp(av) = 1; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1842 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1843 AvARRAY(av)[0] = a; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1844 AvARRAY(av)[1] = b; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1845 PL_stack_sp = PL_stack_base; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1846 PL_op = PL_sortcop; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1847 CALLRUNOPS(aTHX); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1848 PL_op = sortop; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1849 PL_curcop = cop; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1850 pad = PL_curpad; PL_curpad = 0; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1851 if (PL_stack_sp != PL_stack_base + 1) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1852 assert(PL_stack_sp == PL_stack_base); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1853 result = SvIV(&PL_sv_undef); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1854 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1855 else result = SvIV(*PL_stack_sp); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1856 PL_curpad = pad; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1857 while (PL_scopestack_ix > oldscopeix) { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1858 LEAVE; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1859 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1860 leave_scope(oldsaveix); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1861 PL_curpm = pm; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1862 return result; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1863 } |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1864 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1865 static I32 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1866 S_sortcv_xsub(pTHX_ SV *const a, SV *const b) |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1867 { |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1868 dSP; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1869 const I32 oldsaveix = PL_savestack_ix; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1870 const I32 oldscopeix = PL_scopestack_ix; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1871 CV * const cv=MUTABLE_CV(PL_sortcop); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1872 I32 result; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1873 PMOP * const pm = PL_curpm; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1874 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1875 PERL_ARGS_ASSERT_SORTCV_XSUB; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1876 |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1877 SP = PL_stack_base; |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
HackBot
parents:
diff
changeset
|
1878 PUSHMARK(SP); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1879 EXTEND(SP, 2); |
a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
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parents:
diff
changeset
|
1880 *++SP = a; |
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|
1881 *++SP = b; |
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|
1882 PUTBACK; |
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|
1883 (void)(*CvXSUB(cv))(aTHX_ cv); |
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|
1884 if (PL_stack_sp != PL_stack_base + 1) |
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|
1885 Perl_croak(aTHX_ "Sort subroutine didn't return single value"); |
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|
1886 result = SvIV(*PL_stack_sp); |
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|
1887 while (PL_scopestack_ix > oldscopeix) { |
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1888 LEAVE; |
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1889 } |
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|
1890 leave_scope(oldsaveix); |
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|
1891 PL_curpm = pm; |
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1892 return result; |
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1893 } |
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1894 |
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1895 |
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|
1896 static I32 |
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1897 S_sv_ncmp(pTHX_ SV *const a, SV *const b) |
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1898 { |
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1899 const NV nv1 = SvNSIV(a); |
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1900 const NV nv2 = SvNSIV(b); |
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1901 |
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1902 PERL_ARGS_ASSERT_SV_NCMP; |
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1903 |
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1904 #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
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1905 if (Perl_isnan(nv1) || Perl_isnan(nv2)) { |
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1906 #else |
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1907 if (nv1 != nv1 || nv2 != nv2) { |
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1908 #endif |
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1909 if (ckWARN(WARN_UNINITIALIZED)) report_uninit(NULL); |
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1910 return 0; |
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1911 } |
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1912 return nv1 < nv2 ? -1 : nv1 > nv2 ? 1 : 0; |
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1913 } |
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1914 |
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1915 static I32 |
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1916 S_sv_i_ncmp(pTHX_ SV *const a, SV *const b) |
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1917 { |
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1918 const IV iv1 = SvIV(a); |
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1919 const IV iv2 = SvIV(b); |
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1920 |
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1921 PERL_ARGS_ASSERT_SV_I_NCMP; |
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1922 |
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1923 return iv1 < iv2 ? -1 : iv1 > iv2 ? 1 : 0; |
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1924 } |
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1925 |
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1926 #define tryCALL_AMAGICbin(left,right,meth) \ |
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1927 (SvAMAGIC(left)||SvAMAGIC(right)) \ |
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1928 ? amagic_call(left, right, meth, 0) \ |
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1929 : NULL; |
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1930 |
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1931 #define SORT_NORMAL_RETURN_VALUE(val) (((val) > 0) ? 1 : ((val) ? -1 : 0)) |
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1932 |
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1933 static I32 |
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1934 S_amagic_ncmp(pTHX_ SV *const a, SV *const b) |
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1935 { |
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1936 SV * const tmpsv = tryCALL_AMAGICbin(a,b,ncmp_amg); |
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1937 |
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1938 PERL_ARGS_ASSERT_AMAGIC_NCMP; |
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1939 |
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1940 if (tmpsv) { |
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1941 if (SvIOK(tmpsv)) { |
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1942 const I32 i = SvIVX(tmpsv); |
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1943 return SORT_NORMAL_RETURN_VALUE(i); |
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1944 } |
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|
1945 else { |
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1946 const NV d = SvNV(tmpsv); |
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1947 return SORT_NORMAL_RETURN_VALUE(d); |
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|
1948 } |
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1949 } |
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1950 return S_sv_ncmp(aTHX_ a, b); |
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1951 } |
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|
1952 |
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|
1953 static I32 |
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|
1954 S_amagic_i_ncmp(pTHX_ SV *const a, SV *const b) |
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1955 { |
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1956 SV * const tmpsv = tryCALL_AMAGICbin(a,b,ncmp_amg); |
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1957 |
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|
1958 PERL_ARGS_ASSERT_AMAGIC_I_NCMP; |
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1959 |
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1960 if (tmpsv) { |
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1961 if (SvIOK(tmpsv)) { |
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1962 const I32 i = SvIVX(tmpsv); |
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1963 return SORT_NORMAL_RETURN_VALUE(i); |
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|
1964 } |
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|
1965 else { |
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1966 const NV d = SvNV(tmpsv); |
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1967 return SORT_NORMAL_RETURN_VALUE(d); |
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|
1968 } |
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|
1969 } |
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|
1970 return S_sv_i_ncmp(aTHX_ a, b); |
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|
1971 } |
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|
1972 |
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|
1973 static I32 |
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|
1974 S_amagic_cmp(pTHX_ SV *const str1, SV *const str2) |
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|
1975 { |
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|
1976 SV * const tmpsv = tryCALL_AMAGICbin(str1,str2,scmp_amg); |
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|
1977 |
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|
1978 PERL_ARGS_ASSERT_AMAGIC_CMP; |
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|
1979 |
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changeset
|
1980 if (tmpsv) { |
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|
1981 if (SvIOK(tmpsv)) { |
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|
1982 const I32 i = SvIVX(tmpsv); |
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|
1983 return SORT_NORMAL_RETURN_VALUE(i); |
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|
1984 } |
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|
1985 else { |
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changeset
|
1986 const NV d = SvNV(tmpsv); |
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|
1987 return SORT_NORMAL_RETURN_VALUE(d); |
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changeset
|
1988 } |
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|
1989 } |
a16537d2fe07
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changeset
|
1990 return sv_cmp(str1, str2); |
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|
1991 } |
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changeset
|
1992 |
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1993 #ifdef USE_LOCALE_COLLATE |
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1994 |
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1995 static I32 |
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1996 S_amagic_cmp_locale(pTHX_ SV *const str1, SV *const str2) |
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1997 { |
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1998 SV * const tmpsv = tryCALL_AMAGICbin(str1,str2,scmp_amg); |
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1999 |
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2000 PERL_ARGS_ASSERT_AMAGIC_CMP_LOCALE; |
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2001 |
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2002 if (tmpsv) { |
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2003 if (SvIOK(tmpsv)) { |
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2004 const I32 i = SvIVX(tmpsv); |
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2005 return SORT_NORMAL_RETURN_VALUE(i); |
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2006 } |
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2007 else { |
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2008 const NV d = SvNV(tmpsv); |
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2009 return SORT_NORMAL_RETURN_VALUE(d); |
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2010 } |
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2011 } |
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2012 return sv_cmp_locale(str1, str2); |
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2013 } |
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2014 |
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2015 #endif |
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2016 |
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2017 /* |
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2018 * ex: set ts=8 sts=4 sw=4 et: |
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2019 */ |