std::error_code:: operator=

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C++
Utilities library
General utilities
Relational operators (deprecated in C++20)
Diagnostics library
std::error_code
template < class ErrorCodeEnum >
error_code & operator = ( ErrorCodeEnum e ) noexcept ;
(1) (since C++11)
error_code & operator = ( const error_code & other ) = default ;
(2) (since C++11)
(implicitly declared)
error_code & operator = ( error_code && other ) = default ;
(3) (since C++11)
(implicitly declared)
1) Replaces the error code and corresponding category with those representing error code enum e .

Equivalent to * this = make_error_code ( e ) , where make_error_code is only found by argument-dependent lookup .

This overload participates in overload resolution only if std:: is_error_code_enum < ErrorCodeEnum > :: value is true .
2,3) Implicitly defined copy-assignment operator and move-assignment operator assign the contents of other to * this .

Parameters

e - error code enum to construct
other - another error code to assign with

Return value

* this

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_code overloads were used ADL-found overloads are used

See also

assigns another error code
(public member function)
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