template< class ErrorCodeEnum >
error_code& operator=( ErrorCodeEnum e ) noexcept;
Replaces the error code and corresponding category with those representing error code enum
Equivalent to *this = make_error_code(e), where
make_error_code is called unqualified to enable argument-dependent lookup. This overload participates in overload resolution only if std::is_error_code_enum<ErrorCodeEnum>::value is true.
|e||-||error code enum to construct|
 Return value
Copy-assignment operator is defined implicitly.
make_error_code is intended to be used in the original proposal N2422, and used by all known implementations. However, the standard requires that only
std::make_error_code overloads are considered. This is LWG issue 3629.
 See also
| assigns another error code |
(public member function)