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1 | /* |
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2 | * This file is part of Crossfire TRT, the Multiplayer Online Role Playing Game. |
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3 | * |
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4 | * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team |
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5 | * |
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6 | * Crossfire TRT is free software; you can redistribute it and/or modify it |
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7 | * under the terms of the GNU General Public License as published by the Free |
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8 | * Software Foundation; either version 2 of the License, or (at your option) |
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9 | * any later version. |
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10 | * |
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11 | * This program is distributed in the hope that it will be useful, but |
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12 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
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13 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 | * for more details. |
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15 | * |
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16 | * You should have received a copy of the GNU General Public License along |
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17 | * with Crossfire TRT; if not, write to the Free Software Foundation, Inc. 51 |
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18 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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19 | * |
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20 | * The authors can be reached via e-mail to <crossfire@schmorp.de> |
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21 | */ |
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22 | |
| 1 | #ifndef UTIL_H__ |
23 | #ifndef UTIL_H__ |
| 2 | #define UTIL_H__ |
24 | #define UTIL_H__ |
| 3 | |
25 | |
| 4 | //#define PREFER_MALLOC |
26 | //#define PREFER_MALLOC |
| 5 | |
27 | |
| … | |
… | |
| 11 | # define is_constant(c) 0 |
33 | # define is_constant(c) 0 |
| 12 | # define expect(expr,value) (expr) |
34 | # define expect(expr,value) (expr) |
| 13 | # define prefetch(addr,rw,locality) |
35 | # define prefetch(addr,rw,locality) |
| 14 | #endif |
36 | #endif |
| 15 | |
37 | |
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38 | #if __GNUC__ < 4 || (__GNUC__ == 4 || __GNUC_MINOR__ < 4) |
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39 | # define decltype(x) typeof(x) |
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40 | #endif |
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41 | |
| 16 | // put into ifs if you are very sure that the expression |
42 | // put into ifs if you are very sure that the expression |
| 17 | // is mostly true or mosty false. note that these return |
43 | // is mostly true or mosty false. note that these return |
| 18 | // booleans, not the expression. |
44 | // booleans, not the expression. |
| 19 | #define expect_false(expr) expect ((expr) != 0, 0) |
45 | #define expect_false(expr) expect ((expr) != 0, 0) |
| 20 | #define expect_true(expr) expect ((expr) != 0, 1) |
46 | #define expect_true(expr) expect ((expr) != 0, 1) |
| … | |
… | |
| 28 | |
54 | |
| 29 | #include <shstr.h> |
55 | #include <shstr.h> |
| 30 | #include <traits.h> |
56 | #include <traits.h> |
| 31 | |
57 | |
| 32 | // use a gcc extension for auto declarations until ISO C++ sanctifies them |
58 | // use a gcc extension for auto declarations until ISO C++ sanctifies them |
| 33 | #define auto(var,expr) typeof(expr) var = (expr) |
59 | #define auto(var,expr) decltype(expr) var = (expr) |
| 34 | |
60 | |
| 35 | // very ugly macro that basicaly declares and initialises a variable |
61 | // very ugly macro that basicaly declares and initialises a variable |
| 36 | // that is in scope for the next statement only |
62 | // that is in scope for the next statement only |
| 37 | // works only for stuff that can be assigned 0 and converts to false |
63 | // works only for stuff that can be assigned 0 and converts to false |
| 38 | // (note: works great for pointers) |
64 | // (note: works great for pointers) |
