std::error_condition::operator=

template <class ErrorConditionEnum>
  error_condition& operator= (ErrorConditionEnum e) noexcept;

Assign error condition

Calls make_error_condition to construct an error condition from e, whose value is assigned to the error_condition object.

This function only participates in overload resolution if is_error_condition_enum<ErrorConditionEnum>::value is true. Which is the case when errc is used as the ErrorConditionEnum type.

Member function assign can be used to assign a new value to the error_condition object using an integer value and a category, instead of an enum value.

Parameters

e: Error condition enum value of an enum type for which is_error_condition_enum has a value member with a value of true.
If this is a value of type errc, the object is set to the appropriate error condition value of the generic_category.