llvm-project/libcxx/include/__assert

61 lines
2.1 KiB
C++

// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP___ASSERT
#define _LIBCPP___ASSERT
#include <__availability>
#include <__config>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
// This is for backwards compatibility with code that might have been enabling
// assertions through the Debug mode previously.
#if _LIBCPP_DEBUG_LEVEL >= 1
# ifndef _LIBCPP_ENABLE_ASSERTIONS
# define _LIBCPP_ENABLE_ASSERTIONS 1
# endif
#endif
#ifndef _LIBCPP_ENABLE_ASSERTIONS
# define _LIBCPP_ENABLE_ASSERTIONS _LIBCPP_ENABLE_ASSERTIONS_DEFAULT
#endif
#if _LIBCPP_ENABLE_ASSERTIONS != 0 && _LIBCPP_ENABLE_ASSERTIONS != 1
# error "_LIBCPP_ENABLE_ASSERTIONS must be set to 0 or 1"
#endif
#if _LIBCPP_ENABLE_ASSERTIONS
# define _LIBCPP_ASSERT(expression, message) \
(__builtin_expect(static_cast<bool>(expression), 1) ? \
(void)0 : \
::std::__libcpp_assertion_handler(__FILE__, __LINE__, #expression, message))
#else
# if __has_builtin(__builtin_assume)
# define _LIBCPP_ASSERT(expression, message) \
(_LIBCPP_DIAGNOSTIC_PUSH \
_LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wassume") \
__builtin_assume(static_cast<bool>(expression)) \
_LIBCPP_DIAGNOSTIC_POP)
# else
# define _LIBCPP_ASSERT(expression, message) ((void)0)
# endif
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
_LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_AVAILABILITY_ASSERTION_HANDLER
void __libcpp_assertion_handler(char const* __file, int __line, char const* __expression, char const* __message);
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___ASSERT