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1 iffit1.i and iffit2.b98 are a test of the C-INTERCAL/cfunge external
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2 calls system. To use the test, use this command:
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3
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4 ick -ea iffit1.i iffit2.b98
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5
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6 What follows is the expected output, annotated to show what causes
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7 each line to be printed.
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8
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9 Before IFFI... Printed by the Funge program before IFFI is loaded.
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10 0 Printed immediately after IFFI loads; the program then
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11 yields immediately, running the INTERCAL program.
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12 I Printed at the start of the INTERCAL program; tests Y.
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13 2 Printed by the Funge program after (100) is NEXTed to.
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14 This tests NEXTING to an L in the Funge program.
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15 III Printed by INTERCAL after the Funge program does 2R
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16 (i.e. RESUME 2).
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17 IV Tests COMING FROM an L when in mark-mode after a NEXT.
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18 5 Tests NEXTING FROM the INTERCAL program to the Funge
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19 program using X.
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20 VI Tests RESUMING to the INTERCAL program after the NEXT
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21 FROM in the Befunge program.
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22 VII Tests that COME FROMs happen at the end of a command.
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23 8 Tests COMING FROM the INTERCAL program to the Funge
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24 program using C.
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25 IX Tests FORGET using F, and also RESUME after a COME FROM
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26 in the Befunge program.
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27 X This (irrelevantly) tests ONCE in the INTERCAL program.
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28 11 This (likewise irrelevantly) tests that p in Funge has
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29 correctly altered the flow of control.
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30 XII Tests COMING FROM an L when not in mark-mode.
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31 13 Tests variable access using G in the Funge program to
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32 read an INTERCAL variable, also a second marker.
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33 XIV Tests the use of S to set an INTERCAL variable.
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34 15 Tests that CREATEd commands send values correctly.
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35 16 Tests that CREATEd commands send bitwidths correctly.
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36 17 Tests that CREATEd commands send names correctly.
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37 The above three tests test CREATION using A and D.
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38 XVIII Tests that V sets arguments to CREATED commands
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39 correctly, and also that Y correctly reflects the
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40 second time.
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41
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42 At this point the program should end, having tested all the commands
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43 in the IFFI fingerprint. (Obviously, this is not an exhaustive test,
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44 because, for instance, G was only used to get onespot variables not
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45 twospot variables.)
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46
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47 It is an interesting challenge to try to figure out how the tests
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48 work, especially given that the Funge program is self-modifying, the
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49 statements in the INTERCAL program don't always do the same thing
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50 every time they're run, and the Funge program modifies the syntax of
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51 the INTERCAL program at runtime.
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