| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /* Copyright (C) 1991,1992,1994-2001,2003,2004 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | |
| 4 | The GNU C Library is free software; you can redistribute it and/or |
| 5 | modify it under the terms of the GNU Lesser General Public |
| 6 | License as published by the Free Software Foundation; either |
| 7 | version 2.1 of the License, or (at your option) any later version. |
| 8 | |
| 9 | The GNU C Library is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | Lesser General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU Lesser General Public |
| 15 | License along with the GNU C Library; if not, write to the Free |
| 16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 17 | 02111-1307 USA. */ |
| 18 | |
| 19 | /* |
| 20 | * ISO C99 Standard: 7.2 Diagnostics <assert.h> |
| 21 | */ |
| 22 | |
| 23 | #ifdef _ASSERT_H |
| 24 | |
| 25 | # undef _ASSERT_H |
| 26 | # undef assert |
| 27 | # undef __ASSERT_VOID_CAST |
| 28 | |
| 29 | #endif /* assert.h */ |
| 30 | |
| 31 | #define _ASSERT_H 1 |
| 32 | #include <features.h> |
| 33 | |
| 34 | #if defined __cplusplus && __GNUC_PREREQ (2,95) |
| 35 | # define __ASSERT_VOID_CAST static_cast<void> |
| 36 | #else |
| 37 | # define __ASSERT_VOID_CAST (void) |
| 38 | #endif |
| 39 | |
| 40 | /* void assert (int expression); |
| 41 | |
| 42 | If NDEBUG is defined, do nothing. |
| 43 | If not, and EXPRESSION is zero, print an error message and abort. */ |
| 44 | |
| 45 | #ifdef NDEBUG |
| 46 | |
| 47 | # define assert(expr) (__ASSERT_VOID_CAST (0)) |
| 48 | |
| 49 | #else /* Not NDEBUG. */ |
| 50 | |
| 51 | __BEGIN_DECLS |
| 52 | |
| 53 | /* This prints an "Assertion failed" message and aborts. */ |
| 54 | extern void __assert(const char *, const char *, unsigned int, const char *) |
| 55 | __THROW __attribute__ ((__noreturn__)); |
| 56 | libc_hidden_proto(__assert) |
| 57 | |
| 58 | __END_DECLS |
| 59 | |
| 60 | # define assert(expr) \ |
| 61 | (__ASSERT_VOID_CAST ((expr) ? 0 : \ |
| 62 | (__assert (__STRING(expr), __FILE__, __LINE__, __ASSERT_FUNCTION), 0))) |
| 63 | |
| 64 | /* Version 2.4 and later of GCC define a magical variable `__PRETTY_FUNCTION__' |
| 65 | which contains the name of the function currently being defined. |
| 66 | This is broken in G++ before version 2.6. |
| 67 | C9x has a similar variable called __func__, but prefer the GCC one since |
| 68 | it demangles C++ function names. */ |
| 69 | # if defined __cplusplus ? __GNUC_PREREQ (2, 6) : __GNUC_PREREQ (2, 4) |
| 70 | # define __ASSERT_FUNCTION __PRETTY_FUNCTION__ |
| 71 | # else |
| 72 | # if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L |
| 73 | # define __ASSERT_FUNCTION __func__ |
| 74 | # else |
| 75 | # define __ASSERT_FUNCTION ((__const char *) 0) |
| 76 | # endif |
| 77 | # endif |
| 78 | |
| 79 | #endif /* NDEBUG. */ |