std::make_error_code(std::io_errc) (3) - Linux Man Pages

std::make_error_code(std::io_errc): std::make_error_code(std::io_errc)


std::make_error_code(std::io_errc) - std::make_error_code(std::io_errc)


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

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 when given an std::io_errc argument.


e - error code number

Return value

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


// Run this code

  #include <iostream>
  #include <system_error>
  int main()
      std::error_code ec = std::make_error_code(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

See also

error_code holds a platform-dependent error code

io_errc the IO stream error codes