std:: operator<< (std::error_code)

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Utilities library
General utilities
Relational operators (deprecated in C++20)
Defined in header <system_error>
template < class CharT, class Traits >

std:: basic_ostream < CharT, Traits > &

operator << ( basic_ostream < CharT, Traits > & os, const error_code & ec ) ;
(since C++11)

Performs stream output operation on error code ec .

Equivalent to os << ec. category ( ) . name ( ) << ':' << ec. value ( ) .

Parameters

os - output stream to insert data to
ec - error code

Return value

os