xref: /llvm-project/libcxx/include/__system_error/system_error.h (revision 2b26ee6e790574e05c3c9a562bc37897daf0f384)
1e8cfbfd0SMark de Wever // -*- C++ -*-
2e8cfbfd0SMark de Wever //===----------------------------------------------------------------------===//
3e8cfbfd0SMark de Wever //
4e8cfbfd0SMark de Wever // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5e8cfbfd0SMark de Wever // See https://llvm.org/LICENSE.txt for license information.
6e8cfbfd0SMark de Wever // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7e8cfbfd0SMark de Wever //
8e8cfbfd0SMark de Wever //===----------------------------------------------------------------------===//
9e8cfbfd0SMark de Wever 
10e8cfbfd0SMark de Wever #ifndef _LIBCPP___SYSTEM_ERROR_SYSTEM_ERROR_H
11e8cfbfd0SMark de Wever #define _LIBCPP___SYSTEM_ERROR_SYSTEM_ERROR_H
12e8cfbfd0SMark de Wever 
13e8cfbfd0SMark de Wever #include <__config>
14e8cfbfd0SMark de Wever #include <__system_error/error_category.h>
15e8cfbfd0SMark de Wever #include <__system_error/error_code.h>
163c28ce6bSMark de Wever #include <__verbose_abort>
17e8cfbfd0SMark de Wever #include <stdexcept>
18e8cfbfd0SMark de Wever #include <string>
19e8cfbfd0SMark de Wever 
20e8cfbfd0SMark de Wever #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
21e8cfbfd0SMark de Wever #  pragma GCC system_header
22e8cfbfd0SMark de Wever #endif
23e8cfbfd0SMark de Wever 
24e8cfbfd0SMark de Wever _LIBCPP_BEGIN_NAMESPACE_STD
25e8cfbfd0SMark de Wever 
26f1ea0b11SNikolas Klauser class _LIBCPP_EXPORTED_FROM_ABI system_error : public runtime_error {
27e8cfbfd0SMark de Wever   error_code __ec_;
2851f0b809SMark de Wever 
29e8cfbfd0SMark de Wever public:
30e8cfbfd0SMark de Wever   system_error(error_code __ec, const string& __what_arg);
31e8cfbfd0SMark de Wever   system_error(error_code __ec, const char* __what_arg);
32e8cfbfd0SMark de Wever   system_error(error_code __ec);
33e8cfbfd0SMark de Wever   system_error(int __ev, const error_category& __ecat, const string& __what_arg);
34e8cfbfd0SMark de Wever   system_error(int __ev, const error_category& __ecat, const char* __what_arg);
35e8cfbfd0SMark de Wever   system_error(int __ev, const error_category& __ecat);
3683ce1397SNikolas Klauser   _LIBCPP_HIDE_FROM_ABI system_error(const system_error&) _NOEXCEPT = default;
37e8cfbfd0SMark de Wever   ~system_error() _NOEXCEPT override;
38e8cfbfd0SMark de Wever 
39943d2257SMark de Wever   _LIBCPP_HIDE_FROM_ABI const error_code& code() const _NOEXCEPT { return __ec_; }
40e8cfbfd0SMark de Wever };
41e8cfbfd0SMark de Wever 
42*2b26ee6eSJames Y Knight // __ev is expected to be an error in the generic_category domain (e.g. from
43*2b26ee6eSJames Y Knight // errno, or std::errc::*), not system_category (e.g. from windows syscalls).
44*2b26ee6eSJames Y Knight [[__noreturn__]] _LIBCPP_EXPORTED_FROM_ABI void __throw_system_error(int __ev, const char* __what_arg);
45*2b26ee6eSJames Y Knight 
46748023dcSNikolas Klauser [[__noreturn__]] _LIBCPP_HIDE_FROM_ABI inline void __throw_system_error(error_code __ec, const char* __what_arg) {
47ba87515fSNikolas Klauser #if _LIBCPP_HAS_EXCEPTIONS
483c28ce6bSMark de Wever   throw system_error(__ec, __what_arg);
493c28ce6bSMark de Wever #else
503c28ce6bSMark de Wever   _LIBCPP_VERBOSE_ABORT(
513c28ce6bSMark de Wever       "system_error was thrown in -fno-exceptions mode with error %i and message \"%s\"", __ec.value(), __what_arg);
523c28ce6bSMark de Wever #endif
533c28ce6bSMark de Wever }
54e8cfbfd0SMark de Wever 
55e8cfbfd0SMark de Wever _LIBCPP_END_NAMESPACE_STD
56943d2257SMark de Wever 
57e8cfbfd0SMark de Wever #endif // _LIBCPP___SYSTEM_ERROR_SYSTEM_ERROR_H
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