std::error_condition::assign (3) - Linux Manuals
std::error_condition::assign: std::error_condition::assign
NAME
std::error_condition::assign - std::error_condition::assign
Synopsis
void assign( int val, const error_category& cat ) noexcept; (since C++11)
Assigns contents to an error condition. Sets the error code to val and error category to cat.
Parameters
val - error code
cat - error category
Return value
(none)