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1//===-- Safe nullptr check --------------------------------------*- C++ -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLVM_LIBC_SRC___SUPPORT_MACROS_NULL_CHECK_H10#define LLVM_LIBC_SRC___SUPPORT_MACROS_NULL_CHECK_H11 12#include "src/__support/macros/config.h"13#include "src/__support/macros/optimization.h"14 15#if defined(LIBC_ADD_NULL_CHECKS)16#define LIBC_CRASH_ON_NULLPTR(ptr) \17 do { \18 if (LIBC_UNLIKELY((ptr) == nullptr)) \19 __builtin_trap(); \20 } while (0)21#define LIBC_CRASH_ON_VALUE(var, value) \22 do { \23 if (LIBC_UNLIKELY((var) == (value))) \24 __builtin_trap(); \25 } while (0)26 27#else28#define LIBC_CRASH_ON_NULLPTR(ptr) \29 do { \30 } while (0)31#define LIBC_CRASH_ON_VALUE(var, value) \32 do { \33 } while (0)34#endif35 36#endif // LLVM_LIBC_SRC___SUPPORT_MACROS_NULL_CHECK_H37