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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___SYSTEM_ERROR_SYSTEM_ERROR_H11#define _LIBCPP___SYSTEM_ERROR_SYSTEM_ERROR_H12 13#include <__config>14#include <__system_error/error_category.h>15#include <__system_error/error_code.h>16#include <__verbose_abort>17#include <stdexcept>18#include <string>19 20#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)21# pragma GCC system_header22#endif23 24_LIBCPP_BEGIN_NAMESPACE_STD25 26class _LIBCPP_EXPORTED_FROM_ABI system_error : public runtime_error {27 error_code __ec_;28 29public:30 system_error(error_code __ec, const string& __what_arg);31 system_error(error_code __ec, const char* __what_arg);32 system_error(error_code __ec);33 system_error(int __ev, const error_category& __ecat, const string& __what_arg);34 system_error(int __ev, const error_category& __ecat, const char* __what_arg);35 system_error(int __ev, const error_category& __ecat);36 _LIBCPP_HIDE_FROM_ABI system_error(const system_error&) _NOEXCEPT = default;37 ~system_error() _NOEXCEPT override;38 39 _LIBCPP_HIDE_FROM_ABI const error_code& code() const _NOEXCEPT { return __ec_; }40};41 42// __ev is expected to be an error in the generic_category domain (e.g. from43// errno, or std::errc::*), not system_category (e.g. from windows syscalls).44[[__noreturn__]] _LIBCPP_EXPORTED_FROM_ABI void __throw_system_error(int __ev, const char* __what_arg);45 46[[__noreturn__]] _LIBCPP_HIDE_FROM_ABI inline void __throw_system_error(error_code __ec, const char* __what_arg) {47#if _LIBCPP_HAS_EXCEPTIONS48 throw system_error(__ec, __what_arg);49#else50 _LIBCPP_VERBOSE_ABORT(51 "system_error was thrown in -fno-exceptions mode with error %i and message \"%s\"", __ec.value(), __what_arg);52#endif53}54 55_LIBCPP_END_NAMESPACE_STD56 57#endif // _LIBCPP___SYSTEM_ERROR_SYSTEM_ERROR_H58