std::make_error_condition(std::io_errc) (3) Linux Manual Page

std::make_error_condition(std::io_errc) – std::make_error_condition(std::io_errc)

Synopsis

Defined in header <ios>
std::error_condition make_error_condition( std::io_errc e ) noexcept; (since C++11)

Constructs an std::error_condition object from a value of type std::io_errc as if by return std::error_condition(static_cast<int>(e), std::iostream_category()).

Parameters

e – error code number

Return value

A value of type std::error_condition that holds the error code number from e associated with the error category "iostream".

Example

// Run this code

#include <iostream>

#include <system_error>

#include <string>
int main()

{
    std::error_condition ec = std::make_error_condition(std::io_errc::stream);
    std::cout << "error condition for io_errc::stream has value " << ec.value()
              << "\nand message \"" << ec.message() << "\"\n";
}

Output:

  error condition for io_errc::stream has value 1
  and message "unspecified iostream_category error"

See also

error_condition holds a portable error code
                (class)
(C++11)
io_errc the IO stream error codes
                (enum)
(C++11)