| 1 | /* Copyright (C) 1991,1992,1994-1999,2000,2001 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library; if not, write to the Free |
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| 16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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| 17 | 02111-1307 USA. */ |
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| 18 | |
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| 19 | /* |
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| 20 | * ISO C99 Standard: 7.2 Diagnostics <assert.h> |
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| 21 | */ |
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| 22 | |
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| 23 | #ifndef __ASSERT_H |
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| 24 | #define __ASSERT_H |
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| 25 | #include <features.h> |
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| 26 | |
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| 27 | /* If NDEBUG is defined, do nothing. |
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| 28 | If not, and EXPRESSION is zero, print an error message and abort. */ |
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| 29 | |
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| 30 | #ifdef NDEBUG |
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| 31 | |
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| 32 | #define assert(expr) ((void) 0) |
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| 33 | |
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| 34 | #else /* Not NDEBUG. */ |
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| 35 | |
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| 36 | __BEGIN_DECLS |
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| 37 | extern void __assert __P((const char *, const char *, int, const char *)); |
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| 38 | __END_DECLS |
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| 39 | |
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| 40 | #define assert(expr) \ |
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| 41 | ((void) ((expr) || \ |
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| 42 | (__assert (__STRING(expr), \ |
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| 43 | __FILE__, __LINE__, __ASSERT_FUNCTION), 0))) |
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| 44 | |
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| 45 | |
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| 46 | /* Version 2.4 and later of GCC define a magical variable `__PRETTY_FUNCTION__' |
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| 47 | which contains the name of the function currently being defined. |
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| 48 | # define __ASSERT_FUNCTION __PRETTY_FUNCTION__ |
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| 49 | This is broken in G++ before version 2.6. |
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| 50 | C9x has a similar variable called __func__, but prefer the GCC one since |
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| 51 | it demangles C++ function names. */ |
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| 52 | # ifdef __GNUC__ |
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| 53 | # if __GNUC__ > 2 || (__GNUC__ == 2 \ |
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| 54 | && __GNUC_MINOR__ >= (defined __cplusplus ? 6 : 4)) |
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| 55 | # define __ASSERT_FUNCTION __PRETTY_FUNCTION__ |
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| 56 | # else |
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| 57 | # define __ASSERT_FUNCTION ((__const char *) 0) |
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| 58 | # endif |
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| 59 | # else |
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| 60 | # if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L |
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| 61 | # define __ASSERT_FUNCTION __func__ |
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| 62 | # else |
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| 63 | # define __ASSERT_FUNCTION ((__const char *) 0) |
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| 64 | # endif |
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| 65 | # endif |
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| 66 | |
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| 67 | |
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| 68 | #endif /* NDEBUG. */ |
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| 69 | |
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| 70 | #endif /* __ASSERT_H */ |
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