1// -*- C++ -*- 2//===----------------------------------------------------------------------===// 3// 4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5// See https://llvm.org/LICENSE.txt for license information. 6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7// 8//===----------------------------------------------------------------------===// 9 10#ifndef _LIBCPP___ASSERT 11#define _LIBCPP___ASSERT 12 13#include <__config> 14#include <__verbose_abort> 15 16#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 17# pragma GCC system_header 18#endif 19 20// This is for backwards compatibility with code that might have been enabling 21// assertions through the Debug mode previously. 22// TODO: In LLVM 16, make it an error to define _LIBCPP_DEBUG 23#if defined(_LIBCPP_DEBUG) 24# ifndef _LIBCPP_ENABLE_ASSERTIONS 25# define _LIBCPP_ENABLE_ASSERTIONS 1 26# endif 27#endif 28 29// Automatically enable assertions when the debug mode is enabled. 30#if defined(_LIBCPP_ENABLE_DEBUG_MODE) 31# ifndef _LIBCPP_ENABLE_ASSERTIONS 32# define _LIBCPP_ENABLE_ASSERTIONS 1 33# endif 34#endif 35 36#ifndef _LIBCPP_ENABLE_ASSERTIONS 37# define _LIBCPP_ENABLE_ASSERTIONS _LIBCPP_ENABLE_ASSERTIONS_DEFAULT 38#endif 39 40#if _LIBCPP_ENABLE_ASSERTIONS != 0 && _LIBCPP_ENABLE_ASSERTIONS != 1 41# error "_LIBCPP_ENABLE_ASSERTIONS must be set to 0 or 1" 42#endif 43 44#if _LIBCPP_ENABLE_ASSERTIONS 45# define _LIBCPP_ASSERT(expression, message) \ 46 (__builtin_expect(static_cast<bool>(expression), 1) ? \ 47 (void)0 : \ 48 ::std::__libcpp_verbose_abort("%s:%d: assertion %s failed: %s", __FILE__, __LINE__, #expression, message)) 49#elif !defined(_LIBCPP_ASSERTIONS_DISABLE_ASSUME) && __has_builtin(__builtin_assume) 50# define _LIBCPP_ASSERT(expression, message) \ 51 (_LIBCPP_DIAGNOSTIC_PUSH \ 52 _LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wassume") \ 53 __builtin_assume(static_cast<bool>(expression)) \ 54 _LIBCPP_DIAGNOSTIC_POP) 55#else 56# define _LIBCPP_ASSERT(expression, message) ((void)0) 57#endif 58 59#endif // _LIBCPP___ASSERT 60