# std::error_code::operator=

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< cpp‎ | error‎ | 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

assign | assigns another error code (public member function)

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