Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!crdgw1!crdos1!davidsen From: davidsen@crdos1.crd.ge.COM (Wm E Davidsen Jr) Newsgroups: comp.unix.xenix Subject: Re: getc help needed Summary: no wait read Message-ID: <572@crdos1.crd.ge.COM> Date: 27 Sep 89 20:11:23 GMT References: <2056@leah.Albany.Edu> Reply-To: davidsen@crdos1.UUCP (bill davidsen) Distribution: usa Organization: GE Corp R&D Center Lines: 10 The usual way to do this is to use the ioctl which sets the read non-blocking. This will return a byte count of zero if there is no data. This is portable and more likely to continue working than playing around with things inside macros. -- bill davidsen (davidsen@crdos1.crd.GE.COM -or- uunet!crdgw1!crdos1!davidsen) "The world is filled with fools. They blindly follow their so-called 'reason' in the face of the church and common sense. Any fool can see that the world is flat!" - anon