96 lines
3 KiB
C
96 lines
3 KiB
C
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/* $Id$ */
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/*
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* Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
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* Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __PJ_ASSERT_H__
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#define __PJ_ASSERT_H__
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/**
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* @file assert.h
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* @brief Assertion macro pj_assert().
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*/
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#include <pj/config.h>
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#include <pj/compat/assert.h>
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/**
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* @defgroup pj_assert Assertion Macro
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* @ingroup PJ_MISC
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* @{
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*
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* Assertion and other helper macros for sanity checking.
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*/
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/**
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* @hideinitializer
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* Check during debug build that an expression is true. If the expression
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* computes to false during run-time, then the program will stop at the
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* offending statements.
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* For release build, this macro will not do anything.
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*
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* @param expr The expression to be evaluated.
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*/
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#ifndef pj_assert
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# define pj_assert(expr) assert(expr)
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#endif
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/**
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* @hideinitializer
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* If #PJ_ENABLE_EXTRA_CHECK is declared and the value is non-zero, then
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* #PJ_ASSERT_RETURN macro will evaluate the expression in @a expr during
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* run-time. If the expression yields false, assertion will be triggered
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* and the current function will return with the specified return value.
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*
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* If #PJ_ENABLE_EXTRA_CHECK is not declared or is zero, then no run-time
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* checking will be performed. The macro simply evaluates to pj_assert(expr).
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*/
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#if defined(PJ_ENABLE_EXTRA_CHECK) && PJ_ENABLE_EXTRA_CHECK != 0
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# define PJ_ASSERT_RETURN(expr,retval) \
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do { \
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if (!(expr)) { pj_assert(expr); return retval; } \
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} while (0)
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#else
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# define PJ_ASSERT_RETURN(expr,retval) pj_assert(expr)
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#endif
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/**
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* @hideinitializer
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* If #PJ_ENABLE_EXTRA_CHECK is declared and non-zero, then
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* #PJ_ASSERT_ON_FAIL macro will evaluate the expression in @a expr during
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* run-time. If the expression yields false, assertion will be triggered
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* and @a exec_on_fail will be executed.
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*
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* If #PJ_ENABLE_EXTRA_CHECK is not declared or is zero, then no run-time
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* checking will be performed. The macro simply evaluates to pj_assert(expr).
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*/
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#if defined(PJ_ENABLE_EXTRA_CHECK) && PJ_ENABLE_EXTRA_CHECK != 0
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# define PJ_ASSERT_ON_FAIL(expr,exec_on_fail) \
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do { \
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pj_assert(expr); \
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if (!(expr)) exec_on_fail; \
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} while (0)
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#else
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# define PJ_ASSERT_ON_FAIL(expr,exec_on_fail) pj_assert(expr)
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#endif
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/** @} */
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#endif /* __PJ_ASSERT_H__ */
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