| // -*- 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include <cstdio> |
| |
| namespace std { |
| |
| _LIBCPP_SAFE_STATIC static std::terminate_handler __terminate_handler; |
| _LIBCPP_SAFE_STATIC static std::unexpected_handler __unexpected_handler; |
| |
| |
| // libcxxrt provides implementations of these functions itself. |
| unexpected_handler |
| set_unexpected(unexpected_handler func) _NOEXCEPT |
| { |
| return __libcpp_atomic_exchange(&__unexpected_handler, func); |
| } |
| |
| unexpected_handler |
| get_unexpected() _NOEXCEPT |
| { |
| return __libcpp_atomic_load(&__unexpected_handler); |
| |
| } |
| |
| _LIBCPP_NORETURN |
| void unexpected() |
| { |
| (*get_unexpected())(); |
| // unexpected handler should not return |
| terminate(); |
| } |
| |
| terminate_handler |
| set_terminate(terminate_handler func) _NOEXCEPT |
| { |
| return __libcpp_atomic_exchange(&__terminate_handler, func); |
| } |
| |
| terminate_handler |
| get_terminate() _NOEXCEPT |
| { |
| return __libcpp_atomic_load(&__terminate_handler); |
| } |
| |
| #ifndef __EMSCRIPTEN__ // We provide this in JS |
| _LIBCPP_NORETURN |
| void |
| terminate() _NOEXCEPT |
| { |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| try |
| { |
| #endif // _LIBCPP_NO_EXCEPTIONS |
| (*get_terminate())(); |
| // handler should not return |
| fprintf(stderr, "terminate_handler unexpectedly returned\n"); |
| ::abort(); |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| } |
| catch (...) |
| { |
| // handler should not throw exception |
| fprintf(stderr, "terminate_handler unexpectedly threw an exception\n"); |
| ::abort(); |
| } |
| #endif // _LIBCPP_NO_EXCEPTIONS |
| } |
| #endif // !__EMSCRIPTEN__ |
| |
| #if !defined(__EMSCRIPTEN__) |
| bool uncaught_exception() _NOEXCEPT { return uncaught_exceptions() > 0; } |
| |
| int uncaught_exceptions() _NOEXCEPT |
| { |
| #warning uncaught_exception not yet implemented |
| fprintf(stderr, "uncaught_exceptions not yet implemented\n"); |
| ::abort(); |
| } |
| #endif // !__EMSCRIPTEN__ |
| |
| |
| exception::~exception() _NOEXCEPT |
| { |
| } |
| |
| const char* exception::what() const _NOEXCEPT |
| { |
| return "std::exception"; |
| } |
| |
| bad_exception::~bad_exception() _NOEXCEPT |
| { |
| } |
| |
| const char* bad_exception::what() const _NOEXCEPT |
| { |
| return "std::bad_exception"; |
| } |
| |
| |
| bad_alloc::bad_alloc() _NOEXCEPT |
| { |
| } |
| |
| bad_alloc::~bad_alloc() _NOEXCEPT |
| { |
| } |
| |
| const char* |
| bad_alloc::what() const _NOEXCEPT |
| { |
| return "std::bad_alloc"; |
| } |
| |
| bad_array_new_length::bad_array_new_length() _NOEXCEPT |
| { |
| } |
| |
| bad_array_new_length::~bad_array_new_length() _NOEXCEPT |
| { |
| } |
| |
| const char* |
| bad_array_new_length::what() const _NOEXCEPT |
| { |
| return "bad_array_new_length"; |
| } |
| |
| bad_cast::bad_cast() _NOEXCEPT |
| { |
| } |
| |
| bad_typeid::bad_typeid() _NOEXCEPT |
| { |
| } |
| |
| bad_cast::~bad_cast() _NOEXCEPT |
| { |
| } |
| |
| const char* |
| bad_cast::what() const _NOEXCEPT |
| { |
| return "std::bad_cast"; |
| } |
| |
| bad_typeid::~bad_typeid() _NOEXCEPT |
| { |
| } |
| |
| const char* |
| bad_typeid::what() const _NOEXCEPT |
| { |
| return "std::bad_typeid"; |
| } |
| |
| } // namespace std |