{HEAD ~ A QClose function} closes the associated file descriptor created via a QSocket function and returns {TAIL ~ a zero} on success, or −1 if an error occurred 
returns
{ HEAD ~ A QClose function } closes the associated file descriptor created via a QSocket function and returns { TAIL ~ a zero } on success , or −1 if an error occurred
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH