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78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
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/* Copyright (C) 1991,1992,1994-2001,2003,2004 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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/*
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* ISO C99 Standard: 7.2 Diagnostics <assert.h>
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*/
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#ifdef _ASSERT_H
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# undef _ASSERT_H
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# undef assert
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# undef __ASSERT_VOID_CAST
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#endif /* assert.h */
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#define _ASSERT_H 1
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#include <features.h>
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#if defined __cplusplus && __GNUC_PREREQ (2,95)
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# define __ASSERT_VOID_CAST static_cast<void>
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#else
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# define __ASSERT_VOID_CAST (void)
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#endif
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/* void assert (int expression);
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If NDEBUG is defined, do nothing.
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If not, and EXPRESSION is zero, print an error message and abort. */
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#ifdef NDEBUG
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# define assert(expr) (__ASSERT_VOID_CAST (0))
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#else /* Not NDEBUG. */
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__BEGIN_DECLS
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/* This prints an "Assertion failed" message and aborts. */
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extern void __assert(const char *, const char *, unsigned int, const char *)
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__THROW __attribute__ ((__noreturn__));
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__END_DECLS
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# define assert(expr) \
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(__ASSERT_VOID_CAST ((expr) ? 0 : \
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(__assert (__STRING(expr), __FILE__, __LINE__, __ASSERT_FUNCTION), 0)))
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/* Version 2.4 and later of GCC define a magical variable `__PRETTY_FUNCTION__'
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which contains the name of the function currently being defined.
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This is broken in G++ before version 2.6.
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C9x has a similar variable called __func__, but prefer the GCC one since
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it demangles C++ function names. */
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# if defined __cplusplus ? __GNUC_PREREQ (2, 6) : __GNUC_PREREQ (2, 4)
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# define __ASSERT_FUNCTION __PRETTY_FUNCTION__
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# else
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# if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
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# define __ASSERT_FUNCTION __func__
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# else
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# define __ASSERT_FUNCTION ((const char *) 0)
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# endif
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# endif
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#endif /* NDEBUG. */
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