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std::error_condition::error_condition(3) C++ Standard Libary std::error_condition::error_condition(3)

NAME

std::error_condition::error_condition - std::error_condition::error_condition

Synopsis


error_condition() noexcept; (1) (since C++11)
error_condition( int val, const error_category& cat ) (2) (since C++11)
noexcept;
template< class ErrorConditionEnum > (3) (since C++11)
error_condition( ErrorConditionEnum e ) noexcept;
error_condition( const error_condition& other ) = default; (4) (since C++11)
(implicitly declared)
error_condition( error_condition&& other ) = default; (5) (since C++11)
(implicitly declared)


Constructs new error condition.


1) Default constructor. Initializes the error condition with generic category and
error value 0.
2) Initializes the error condition with error value val and error category cat.
3) Initializes the error condition with enum e. Effectively calls
make_error_condition that is only found by argument-dependent lookup for e. This
overload participates in overload resolution only if
std::is_error_condition_enum<ErrorConditionEnum>::value is true.
4,5) Implicitly defined copy constructor and move constructor. Initializes the error
condition with the contents of the other.

Parameters


other - another error condition to initialize with
val - error value
cat - error category
e - error condition enum


Defect reports


The following behavior-changing defect reports were applied retroactively to
previously published C++ standards.


DR Applied to Behavior as published Correct behavior
LWG 3629 C++11 only std::make_error_condition overloads ADL-found overloads
were used are used

See also


make_error_condition(std::errc) creates an error condition for an errc value
(C++11) e
(function)
make_error_condition(std::io_errc) constructs an iostream error condition
(C++11) (function)
make_error_condition(std::future_errc) constructs a future error_condition
(C++11) (function)

2024.06.10 http://cppreference.com