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From: torek@elf.ee.lbl.gov (Chris Torek)
Newsgroups: comp.lang.c
Subject: Re: how do I clear stdin buffer
Message-ID: <14390@dog.ee.lbl.gov>
Date: 18 Jun 91 06:44:19 GMT
References: <43310@cup.portal.com>
Reply-To: torek@elf.ee.lbl.gov (Chris Torek)
Organization: Lawrence Berkeley Laboratory, Berkeley
Lines: 16
X-Local-Date: Mon, 17 Jun 91 23:44:19 PDT

In article <43310@cup.portal.com> tms@cup.portal.com
(Taos Mountain Software) writes:
>The stdio function "scanf" works great for input from datafiles, but I
>always run into problems when doing interactive tty I/O on Unix systems.

Avoid scanf.  sscanf() is OK; scanf() is not.  There may be exceptions
to this rule, but I have found none yet.

>... what I'm interested in is a function like fflush that deals with
>input streams.

POSIX says that fflush wipes out pending input.  4.4BSD will probably
have fpurge().  Neither is portable to all ANSI C systems.
-- 
In-Real-Life: Chris Torek, Lawrence Berkeley Lab CSE/EE (+1 415 486 5427)
Berkeley, CA		Domain:	torek@ee.lbl.gov