Description
int
yaz_errno ( int id)
Returns error for target (last request). A positive value is
returned if the target returned a diagnostic code; a value of
zero is returned if no errors occurred (success); negative value
is returned for other errors targets didn't indicate the error in
question.
yaz_errno() should be called after network
activity for each target - (after yaz_wait()
returns) to determine the success or failure of the last
operation (e.g. search).
