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// -*- 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
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_SYSTEM_ERROR
#define _LIBCPP_SYSTEM_ERROR
/*
system_error synopsis
namespace std
{
class error_category
{
public:
virtual ~error_category() noexcept;
constexpr error_category();
error_category(const error_category&) = delete;
error_category& operator=(const error_category&) = delete;
virtual const char* name() const noexcept = 0;
virtual error_condition default_error_condition(int ev) const noexcept;
virtual bool equivalent(int code, const error_condition& condition) const noexcept;
virtual bool equivalent(const error_code& code, int condition) const noexcept;
virtual string message(int ev) const = 0;
bool operator==(const error_category& rhs) const noexcept;
bool operator!=(const error_category& rhs) const noexcept; // removed in C++20
bool operator<(const error_category& rhs) const noexcept; // removed in C++20
strong_ordering operator<=>(const error_category& rhs) const noexcept; // C++20
};
const error_category& generic_category() noexcept;
const error_category& system_category() noexcept;
template <class T> struct is_error_code_enum
: public false_type {};
template <class T> struct is_error_condition_enum
: public false_type {};
template <class _Tp>
inline constexpr bool is_error_condition_enum_v = is_error_condition_enum<_Tp>::value; // C++17
template <class _Tp>
inline constexpr bool is_error_code_enum_v = is_error_code_enum<_Tp>::value; // C++17
class error_code
{
public:
// constructors:
error_code() noexcept;
error_code(int val, const error_category& cat) noexcept;
template <class ErrorCodeEnum>
error_code(ErrorCodeEnum e) noexcept;
// modifiers:
void assign(int val, const error_category& cat) noexcept;
template <class ErrorCodeEnum>
error_code& operator=(ErrorCodeEnum e) noexcept;
void clear() noexcept;
// observers:
int value() const noexcept;
const error_category& category() const noexcept;
error_condition default_error_condition() const noexcept;
string message() const;
explicit operator bool() const noexcept;
};
// non-member functions:
template <class charT, class traits>
basic_ostream<charT,traits>&
operator<<(basic_ostream<charT,traits>& os, const error_code& ec);
class error_condition
{
public:
// constructors:
error_condition() noexcept;
error_condition(int val, const error_category& cat) noexcept;
template <class ErrorConditionEnum>
error_condition(ErrorConditionEnum e) noexcept;
// modifiers:
void assign(int val, const error_category& cat) noexcept;
template <class ErrorConditionEnum>
error_condition& operator=(ErrorConditionEnum e) noexcept;
void clear() noexcept;
// observers:
int value() const noexcept;
const error_category& category() const noexcept;
string message() const noexcept;
explicit operator bool() const noexcept;
};
class system_error
: public runtime_error
{
public:
system_error(error_code ec, const string& what_arg);
system_error(error_code ec, const char* what_arg);
system_error(error_code ec);
system_error(int ev, const error_category& ecat, const string& what_arg);
system_error(int ev, const error_category& ecat, const char* what_arg);
system_error(int ev, const error_category& ecat);
const error_code& code() const noexcept;
const char* what() const noexcept;
};
template <> struct is_error_condition_enum<errc>
: true_type { }
error_code make_error_code(errc e) noexcept;
error_condition make_error_condition(errc e) noexcept;
// Comparison operators:
bool operator==(const error_code& lhs, const error_code& rhs) noexcept;
bool operator==(const error_code& lhs, const error_condition& rhs) noexcept;
bool operator==(const error_condition& lhs, const error_code& rhs) noexcept; // removed in C++20
bool operator==(const error_condition& lhs, const error_condition& rhs) noexcept;
bool operator!=(const error_code& lhs, const error_code& rhs) noexcept; // removed in C++20
bool operator!=(const error_code& lhs, const error_condition& rhs) noexcept; // removed in C++20
bool operator!=(const error_condition& lhs, const error_code& rhs) noexcept; // removed in C++20
bool operator!=(const error_condition& lhs, const error_condition& rhs) noexcept; // removed in C++20
bool operator<(const error_condition& lhs, const error_condition& rhs) noexcept; // removed in C++20
bool operator<(const error_code& lhs, const error_code& rhs) noexcept; // removed in C++20
strong_ordering operator<=>(const error_code& lhs, const error_code& rhs) noexcept; // C++20
strong_ordering operator<=>(const error_condition& lhs, const error_condition& rhs) noexcept; // C++20
template <> struct hash<std::error_code>;
template <> struct hash<std::error_condition>;
} // std
*/
#include <__config>
#include <__system_error/errc.h>
#include <__system_error/error_category.h>
#include <__system_error/error_code.h>
#include <__system_error/error_condition.h>
#include <__system_error/system_error.h>
#include <version>
// standard-mandated includes
// [system.error.syn]
#include <compare>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
# include <cstdint>
# include <cstring>
# include <limits>
# include <type_traits>
#endif
#endif // _LIBCPP_SYSTEM_ERROR
|
