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# std::make_error_code(std::io_errc)

From cppreference.com
< cpp‎ | io‎ | io errc

Defined in header `<ios>` |  |
std::error_code make_error_code( std::io_errc e ); |  | (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.

### [edit] Parameters

e | - | error code number

### [edit] Return value

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

### [edit] Exceptions

`noexcept` specification:
noexcept

### [edit] Example

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';
    }

Output:

    Error code from io_errc::stream has category iostream

### [edit] See also

error_code (C++11) | holds a platform-dependent error code (class) [edit]
io_errc (C++11) | the IO stream error codes (enum) [edit]

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Category:

- unconditionally noexcept