std::error_code::error_code (3) - Linux Man Pages

std::error_code::error_code: std::error_code::error_code


std::error_code::error_code - std::error_code::error_code


error_code() noexcept; (1) (since C++11)
error_code( int ec, const error_category& ecat ) noexcept; (2) (since C++11)
template< class ErrorCodeEnum > (3) (since C++11)
error_code( ErrorCodeEnum e ) noexcept;

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 error category.
3) Constructs error code from an error code enum e. Equivalent to *this = make_error_code(e). The overload participates in overload resolutions only if std::is_error_code_enum<ErrorCodeEnum>::value == true.


ec - platform dependent error code to construct with
ecat - error category corresponding to ec
e - error code enum to construct with

See also

make_error_code(std::errc) constructs an std::errc error code

make_error_code(std::io_errc) constructs an iostream error code

make_error_code(std::future_errc) constructs a future error code