// -*- 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 <__config>
#include <__verbose_abort>

#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#  pragma GCC system_header
#endif

// Automatically enable assertions when the debug mode is enabled.
#if defined(_LIBCPP_ENABLE_DEBUG_MODE)
#  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                                                                                                     \
         : _LIBCPP_VERBOSE_ABORT(                                                                                      \
               "%s:%d: assertion %s failed: %s", __builtin_FILE(), __builtin_LINE(), #expression, message))
#elif !defined(_LIBCPP_ASSERTIONS_DISABLE_ASSUME) && __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___ASSERT
