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_ABI_MICROSOFT 11# error this header can only be used when targeting the MSVC ABI 12#endif 13 14#include <stdio.h> 15#include <stdlib.h> 16 17extern "C" { 18typedef void(__cdecl* terminate_handler)(); 19_LIBCPP_CRT_FUNC terminate_handler __cdecl set_terminate(terminate_handler _NewTerminateHandler) throw(); 20_LIBCPP_CRT_FUNC terminate_handler __cdecl _get_terminate(); 21 22typedef void(__cdecl* unexpected_handler)(); 23unexpected_handler __cdecl set_unexpected(unexpected_handler _NewUnexpectedHandler) throw(); 24unexpected_handler __cdecl _get_unexpected(); 25 26int __cdecl __uncaught_exceptions(); 27} 28 29namespace std { 30 31unexpected_handler set_unexpected(unexpected_handler func) noexcept { return ::set_unexpected(func); } 32 33unexpected_handler get_unexpected() noexcept { return ::_get_unexpected(); } 34 35_LIBCPP_NORETURN void unexpected() { 36 (*get_unexpected())(); 37 // unexpected handler should not return 38 terminate(); 39} 40 41terminate_handler set_terminate(terminate_handler func) noexcept { return ::set_terminate(func); } 42 43terminate_handler get_terminate() noexcept { return ::_get_terminate(); } 44 45_LIBCPP_NORETURN void terminate() noexcept { 46#ifndef _LIBCPP_HAS_NO_EXCEPTIONS 47 try { 48#endif // _LIBCPP_HAS_NO_EXCEPTIONS 49 (*get_terminate())(); 50 // handler should not return 51 fprintf(stderr, "terminate_handler unexpectedly returned\n"); 52 ::abort(); 53#ifndef _LIBCPP_HAS_NO_EXCEPTIONS 54 } catch (...) { 55 // handler should not throw exception 56 fprintf(stderr, "terminate_handler unexpectedly threw an exception\n"); 57 ::abort(); 58 } 59#endif // _LIBCPP_HAS_NO_EXCEPTIONS 60} 61 62bool uncaught_exception() noexcept { return uncaught_exceptions() > 0; } 63 64int uncaught_exceptions() noexcept { return __uncaught_exceptions(); } 65 66#if !defined(_LIBCPP_ABI_VCRUNTIME) 67bad_cast::bad_cast() noexcept {} 68 69bad_cast::~bad_cast() noexcept {} 70 71const char* bad_cast::what() const noexcept { return "std::bad_cast"; } 72 73bad_typeid::bad_typeid() noexcept {} 74 75bad_typeid::~bad_typeid() noexcept {} 76 77const char* bad_typeid::what() const noexcept { return "std::bad_typeid"; } 78 79exception::~exception() noexcept {} 80 81const char* exception::what() const noexcept { return "std::exception"; } 82 83bad_exception::~bad_exception() noexcept {} 84 85const char* bad_exception::what() const noexcept { return "std::bad_exception"; } 86 87bad_alloc::bad_alloc() noexcept {} 88 89bad_alloc::~bad_alloc() noexcept {} 90 91const char* bad_alloc::what() const noexcept { return "std::bad_alloc"; } 92 93bad_array_new_length::bad_array_new_length() noexcept {} 94 95bad_array_new_length::~bad_array_new_length() noexcept {} 96 97const char* bad_array_new_length::what() const noexcept { return "bad_array_new_length"; } 98#endif // !_LIBCPP_ABI_VCRUNTIME 99 100} // namespace std 101