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