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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-exception7//8//===----------------------------------------------------------------------===//9 10#ifndef _LIBCPP_ABI_MICROSOFT11# error this header can only be used when targeting the MSVC ABI12#endif13 14#include <__verbose_abort>15#include <exception>16#include <new>17 18extern "C" {19typedef void(__cdecl* terminate_handler)();20_LIBCPP_CRT_FUNC terminate_handler __cdecl set_terminate(terminate_handler _NewTerminateHandler) throw();21_LIBCPP_CRT_FUNC terminate_handler __cdecl _get_terminate();22 23typedef void(__cdecl* unexpected_handler)();24unexpected_handler __cdecl set_unexpected(unexpected_handler _NewUnexpectedHandler) throw();25unexpected_handler __cdecl _get_unexpected();26 27int __cdecl __uncaught_exceptions();28}29 30namespace std {31 32unexpected_handler set_unexpected(unexpected_handler func) noexcept { return ::set_unexpected(func); }33 34unexpected_handler get_unexpected() noexcept { return ::_get_unexpected(); }35 36[[noreturn]] void unexpected() {37 (*get_unexpected())();38 // unexpected handler should not return39 terminate();40}41 42terminate_handler set_terminate(terminate_handler func) noexcept { return ::set_terminate(func); }43 44terminate_handler get_terminate() noexcept { return ::_get_terminate(); }45 46[[noreturn]] void terminate() noexcept {47#if _LIBCPP_HAS_EXCEPTIONS48 try {49#endif // _LIBCPP_HAS_EXCEPTIONS50 (*get_terminate())();51 // handler should not return52 __libcpp_verbose_abort("terminate_handler unexpectedly returned\n");53#if _LIBCPP_HAS_EXCEPTIONS54 } catch (...) {55 // handler should not throw exception56 __libcpp_verbose_abort("terminate_handler unexpectedly threw an exception\n");57 }58#endif // _LIBCPP_HAS_EXCEPTIONS59}60 61bool uncaught_exception() noexcept { return uncaught_exceptions() > 0; }62 63int uncaught_exceptions() noexcept { return __uncaught_exceptions(); }64 65#if !defined(_LIBCPP_ABI_VCRUNTIME)66bad_cast::bad_cast() noexcept {}67 68bad_cast::~bad_cast() noexcept {}69 70const char* bad_cast::what() const noexcept { return "std::bad_cast"; }71 72bad_typeid::bad_typeid() noexcept {}73 74bad_typeid::~bad_typeid() noexcept {}75 76const char* bad_typeid::what() const noexcept { return "std::bad_typeid"; }77 78exception::~exception() noexcept {}79 80const char* exception::what() const noexcept { return "std::exception"; }81 82bad_exception::~bad_exception() noexcept {}83 84const char* bad_exception::what() const noexcept { return "std::bad_exception"; }85 86bad_alloc::bad_alloc() noexcept {}87 88bad_alloc::~bad_alloc() noexcept {}89 90const char* bad_alloc::what() const noexcept { return "std::bad_alloc"; }91 92bad_array_new_length::bad_array_new_length() noexcept {}93 94bad_array_new_length::~bad_array_new_length() noexcept {}95 96const char* bad_array_new_length::what() const noexcept { return "bad_array_new_length"; }97#endif // !_LIBCPP_ABI_VCRUNTIME98 99} // namespace std100