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// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
******************************************************************************
*
* Copyright (C) 2002-2011, International Business Machines
* Corporation and others. All Rights Reserved.
*
******************************************************************************
*
* File uassert.h
*
* Contains the U_ASSERT and UPRV_UNREACHABLE_* macros
*
******************************************************************************
*/
#ifndef U_ASSERT_H
#define U_ASSERT_H
/* utypes.h is included to get the proper define for uint8_t */
#include "unicode/utypes.h"
/* for abort */
#include <stdlib.h>
/**
* \def U_ASSERT
* By default, U_ASSERT just wraps the C library assert macro.
* By changing the definition here, the assert behavior for ICU can be changed
* without affecting other non - ICU uses of the C library assert().
*/
#if U_DEBUG
# include <assert.h>
# define U_ASSERT(exp) assert(exp)
#elif U_CPLUSPLUS_VERSION
# define U_ASSERT(exp) (void)0
#else
# define U_ASSERT(exp)
#endif
/**
* \def UPRV_UNREACHABLE_ASSERT
* This macro is used in places that we had believed were unreachable, but
* experience has shown otherwise (possibly due to memory corruption, etc).
* In this case we call assert() in debug versions as with U_ASSERT, instead
* of unconditionally calling abort(). However we also allow redefinition as
* with UPRV_UNREACHABLE_EXIT.
* @internal
*/
#if defined(UPRV_UNREACHABLE_ASSERT)
// Use the predefined value.
#elif U_DEBUG
# include <assert.h>
# define UPRV_UNREACHABLE_ASSERT assert(false)
#elif U_CPLUSPLUS_VERSION
# define UPRV_UNREACHABLE_ASSERT (void)0
#else
# define UPRV_UNREACHABLE_ASSERT
#endif
/**
* \def UPRV_UNREACHABLE_EXIT
* This macro is used to unconditionally abort if unreachable code is ever executed.
* @internal
*/
#if defined(UPRV_UNREACHABLE_EXIT)
// Use the predefined value.
#else
# define UPRV_UNREACHABLE_EXIT abort()
#endif
#endif
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