Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!cornell!batcomputer!itsgw!steinmetz!davidsen
From: davidsen@steinmetz.ge.com (William E. Davidsen Jr)
Newsgroups: comp.lang.c
Subject: Re: input ready under UNIX ??!!??
Keywords: input, unix, help
Message-ID: <12430@steinmetz.ge.com>
Date: 26 Oct 88 17:48:08 GMT
References: <771@necis.UUCP>
Reply-To: davidsen@crdos1.UUCP (bill davidsen)
Organization: General Electric CRD, Schenectady, NY
Lines: 15

Once upon a time I did this, but the source code is hiding...

The basic technique is to set the input stream nonblocking and do a read
of one char. If you don't get it, kbhit returns zero. If you do, push
back the character (with ungetc as I recall) and return one. In any case
restore the original state of the stream. On SysV you can play with the
wait time, etc, to produce a function which provides "if kbhit in N
secs" if it's useful.

Wish I could find or remember more of the details, but this should give
you a start on a solution.
-- 
	bill davidsen		(wedu@ge-crd.arpa)
  {uunet | philabs}!steinmetz!crdos1!davidsen
"Stupidity, like virtue, is its own reward" -me