Path: utzoo!mnetor!uunet!lll-winken!lll-lcc!ames!eos!labrea!decwrl!purdue!i.cc.purdue.edu!j.cc.purdue.edu!pur-ee!uiucdcs!uiucdcsb!kenny
From: kenny@uiucdcsb.cs.uiuc.edu
Newsgroups: comp.lang.c
Subject: Re: Put your code... (was Re: gotos
Message-ID: <165600047@uiucdcsb>
Date: 27 Apr 88 18:32:00 GMT
References: <2597@ttrdc.UUCP>
Lines: 25
Nf-ID: #R:ttrdc.UUCP:2597:uiucdcsb:165600047:000:747
Nf-From: uiucdcsb.cs.uiuc.edu!kenny    Apr 27 13:32:00 1988


I made an error in Part 2 of my recent posting on this subject.  I
left out the ungetc() (which is the key to the whole procedure!) in
the sample C version of Knuth's Example 5.

The code to handle '/' should look like:

case '/':
	if ((c = getchar ()) == '/') {
		putchar ('\n');
		column = 0;
		}
	else {
		ungetc (c);
		column = tabulate (column);
		}
	break;

It beats me how I let that particular gaffe slip through, but I humbly
and contritely apologize to anyone that I confused with it.

Kevin Kenny			UUCP: {ihnp4,pur-ee,convex}!uiucdcs!kenny
Department of Computer Science	ARPA: kenny@B.CS.UIUC.EDU (kenny@UIUC.ARPA)
University of Illinois		CSNET: kenny@UIUC.CSNET
1304 W. Springfield Ave.
Urbana, Illinois, 61801		Voice: (217) 333-6680