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

This function is called by the constructor of std::error_code with an std::io_errc argument.

Parameters

Return value

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

Example

#include <iostream>
#include <system_error>

int main()
{
    std::error_code ec = std::make_error_code(std::io_errc::stream);
    
    // This works because of the overloaded method
    //    and the is_error_code_enum specialization.
    ec = std::io_errc::stream;
    
    std::cout << "Error code from io_errc::stream has category "
              << ec.category().name() << '\n';
}

Error code from io_errc::stream has category iostream

Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

See also