| 1 | /*
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| 2 | * Copyright (c) 2005 Martin Decky
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| 3 | * Copyright (c) 2006 Josef Cejka
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | *
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| 10 | * - Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer.
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| 12 | * - Redistributions in binary form must reproduce the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer in the
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| 14 | * documentation and/or other materials provided with the distribution.
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| 15 | * - The name of the author may not be used to endorse or promote products
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| 16 | * derived from this software without specific prior written permission.
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| 17 | *
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 28 | */
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| 29 |
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| 30 | /** @addtogroup libc
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| 31 | * @{
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| 32 | */
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| 33 | /** @file
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| 34 | */
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| 35 |
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| 36 | #ifndef LIBC_ASSERT_H_
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| 37 | #define LIBC_ASSERT_H_
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| 38 |
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| 39 | /** Debugging assert macro
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| 40 | *
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| 41 | * If NDEBUG is not set, the assert() macro
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| 42 | * evaluates expr and if it is false prints
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| 43 | * error message and terminate program.
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| 44 | *
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| 45 | * @param expr Expression which is expected to be true.
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| 46 | *
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| 47 | */
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| 48 |
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| 49 | #define STR(l) #l
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| 50 | #define STR2(l) STR(l)
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| 51 |
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| 52 | #ifndef NDEBUG
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| 53 |
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| 54 | #define assert(expr) \
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| 55 | do { \
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| 56 | if (!(expr)) \
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| 57 | assert_abort(#expr, __FILE__, STR2(__LINE__)); \
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| 58 | } while (0)
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| 59 |
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| 60 | #else /* NDEBUG */
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| 61 |
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| 62 | #define assert(expr)
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| 63 |
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| 64 | #endif /* NDEBUG */
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| 65 |
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| 66 | extern void assert_abort(const char *, const char *, const char *)
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| 67 | __attribute__((noreturn));
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| 68 |
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| 69 |
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| 70 | #endif
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| 71 |
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| 72 | /** @}
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| 73 | */
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