std::make_error_condition(std::io_errc)

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

#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

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

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