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