From cppreference.com
error_code()noexcept; (1) (since C++11)error_code(intec,consterror_category&ecat)noexcept; (2) (since C++11)template<classErrorCodeEnum>error_code(ErrorCodeEnume)noexcept; (3) (since C++11)error_code(consterror_code&other)=default; (4) (since C++11)
(implicitly declared)error_code(error_code&&other)=default; (5) (since C++11)
(implicitly declared)Constructs new error code.
1) Constructs error code with default value. Equivalent to error_code(0,std::system_category()).
2) Constructs error code with ec as the platform-dependent error code and ecat as the corresponding
.
3) Constructs error code from an error code enum e. Equivalent to make_error_code(e), where make_error_code is only found by
. This overload participates in overload resolution only if std::is_error_code_enum<ErrorCodeEnum>::value is true.
4,5) Implicitly defined copy constructor and move constructor. Initializes the error code with the contents of the other.
Parameters
other - another error code to initialize with ec - platform dependent error code to construct with ecat - error category corresponding to ece - error code enum to construct with Defect reports
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
DR Applied to Behavior as published Correct behavior
C++11 only std::make_error_code overloads were used ADL-found overloads are used See also