Mercurial > repo

comparison interps/cfunge/cfunge-src/src/vector.h @ 996:859f9b4339e6

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
<Gregor> tar xf egobot.tar.xz
author HackBot
date Sun, 09 Dec 2012 19:30:08 +0000
parents
children
comparison
equal deleted inserted replaced
995:6883f5911eb7 996:859f9b4339e6
1 /* -*- mode: C; coding: utf-8; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*-
2 *
3 * cfunge - A standard-conforming Befunge93/98/109 interpreter in C.
4 * Copyright (C) 2008-2009 Arvid Norlander <anmaster AT tele2 DOT se>
5 *
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at the proxy's option) any later version. Arvid Norlander is a
10 * proxy who can decide which future versions of the GNU General Public
11 * License can be used.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 */
21 /**
22 * @file
23 * Definition of, and functions for, a Funge vector.
24 */
25 #ifndef FUNGE_HAD_SRC_VECTOR_H
26 #define FUNGE_HAD_SRC_VECTOR_H
27
28 #include "global.h"
29
30 #include <stdbool.h>
31
32 /// A vector in Funge-Space
33 typedef struct s_funge_vector {
34 funge_cell x; ///< You should be able to guess what this is.
35 funge_cell y; ///< You should be able to guess what this is.
36 } funge_vector;
37
38 /// Useful to create a vector in a list of parameter for example.
39 /// The vector is created on the stack.
40 /// @param a This should be the x value.
41 /// @param b This should be the y value.
42 /// @return A pointer to a vector allocated on the stack, so no need to free it.
43 #define vector_create_ref(a, b) (& (funge_vector) { .x = (a), .y = (b) })
44
45 /**
46 * Checks if vector is cardinal (as in ^>v<).
47 * @param v The vector to check.
48 */
49 FUNGE_ATTR_PURE FUNGE_ATTR_FAST FUNGE_ATTR_WARN_UNUSED
50 bool vector_is_cardinal(const funge_vector * restrict v);
51
52 #endif