DOKK / manpages / debian 13 / libstdc++-12-doc / std::error_condition.3cxx.en
std::error_condition(3cxx) std::error_condition(3cxx)

std::error_condition

#include <system_error>


error_condition () noexcept
Initialize with a zero (no error) value and the generic category. 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
Initialize with the specified value and category. void assign (int __v, const error_category &__cat) noexcept
Set the value and category. const error_category & category () const noexcept
The error category that this error belongs to. void clear () noexcept
Reset the value and category to the default-constructed state. string message () const
The category's description of the value. operator bool () const noexcept
Test whether value() is non-zero. template<typename _ErrorConditionEnum > enable_if< is_error_condition_enum< _ErrorConditionEnum >::value, error_condition & >::type operator= (_ErrorConditionEnum __e) noexcept
int value () const noexcept
The error value.

(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

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

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

Initialize with the specified value and category.

void std::error_condition::assign (int __v, const error_category & __cat) [inline], [noexcept]

Set the value and category.

The error category that this error belongs to.

void std::error_condition::clear () [inline], [noexcept]

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

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

The category's description of the value.

Test whether value() is non-zero.

The error value.

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