libstdc++
std::error_condition Class Reference
Diagnostics

#include <system_error>

Public Member Functions

 error_condition () noexcept
template<typename _ErrorConditionEnum, typename = typename enable_if<is_error_condition_enum<_ErrorConditionEnum>::value>::type>
 error_condition (_ErrorConditionEnum __e) noexcept
 error_condition (int __v, const error_category &__cat) noexcept
void assign (int __v, const error_category &__cat) noexcept
const error_category & category () const noexcept
void clear () noexcept
string message () const
 operator bool () const noexcept
template<typename _ErrorConditionEnum>
enable_if< is_error_condition_enum< _ErrorConditionEnum >::value, error_condition & >::type operator= (_ErrorConditionEnum __e) noexcept
int value () const noexcept

(Note that these are not member symbols.)

error_condition make_error_condition (errc __e) noexcept
bool operator!= (const error_condition &__lhs, const error_code &__rhs) noexcept
bool operator!= (const error_condition &__lhs, const error_condition &__rhs) noexcept
bool operator< (const error_condition &__lhs, const error_condition &__rhs) noexcept
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
bool operator== (const error_condition &__lhs, const error_condition &__rhs) noexcept

Detailed Description

Class error_condition

This class represents error conditions that may be visible at an API boundary. Different error_code values that can occur within a library or module might map to the same error_condition.

An error_condition represents something that the program can test for, and subsequently take appropriate action.

Since
C++11

Definition at line 351 of file system_error.

Constructor & Destructor Documentation

◆ error_condition() [1/3]

std::error_condition::error_condition ( )
inlinenoexcept

Initialize with a zero (no error) value and the generic category.

Definition at line 355 of file system_error.

Referenced by make_error_condition(), operator<(), operator==(), and operator==().

◆ error_condition() [2/3]

std::error_condition::error_condition ( int __v,
const error_category & __cat )
inlinenoexcept

Initialize with the specified value and category.

Definition at line 359 of file system_error.

◆ error_condition() [3/3]

template<typename _ErrorConditionEnum, typename = typename enable_if<is_error_condition_enum<_ErrorConditionEnum>::value>::type>
std::error_condition::error_condition ( _ErrorConditionEnum __e)
inlinenoexcept

Definition at line 364 of file system_error.

Member Function Documentation

◆ assign()

void std::error_condition::assign ( int __v,
const error_category & __cat )
inlinenoexcept

Set the value and category.

Definition at line 372 of file system_error.

Referenced by clear().

◆ category()

const error_category & std::error_condition::category ( ) const
inlinenoexcept

The error category that this error belongs to.

Definition at line 400 of file system_error.

Referenced by message().

◆ clear()

void std::error_condition::clear ( )
inlinenoexcept

Reset the value and category to the default-constructed state.

Definition at line 387 of file system_error.

References assign().

◆ message()

string std::error_condition::message ( ) const
inline

The category's description of the value.

Definition at line 405 of file system_error.

References category(), std::_V2::error_category::message(), and value().

◆ operator bool()

std::error_condition::operator bool ( ) const
inlineexplicitnoexcept

Test whether value() is non-zero.

Definition at line 410 of file system_error.

◆ operator=()

template<typename _ErrorConditionEnum>
enable_if< is_error_condition_enum< _ErrorConditionEnum >::value, error_condition & >::type std::error_condition::operator= ( _ErrorConditionEnum __e)
inlinenoexcept

Definition at line 382 of file system_error.

◆ value()

int std::error_condition::value ( ) const
inlinenoexcept

The error value.

Definition at line 395 of file system_error.

Referenced by message().

The documentation for this class was generated from the following file: