Path: utzoo!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!uunet!mailrus!ncar!mephisto!ncsuvx!news
From: dks@shumv1.uucp (D. K. Smith)
Newsgroups: comp.lang.c
Subject: Re: DEFINITE bug in Turbo C 2.0
Message-ID: <1990Mar23.072435.7971@ncsuvx.ncsu.edu>
Date: 23 Mar 90 07:24:35 GMT
References: <802@zeusa.UUCP>
Sender: news@ncsuvx.ncsu.edu (USENET News System)
Reply-To: dks@shumv1.ncsu.edu (D. K. Smith)
Distribution: na
Organization: NCSU Computing Center
Lines: 33

In article <802@zeusa.UUCP> hendrik@zeusa.UUCP (Hendrik Vermooten) writes:
>Here is a definite bug in C (discovered by Renier v. Wyk)
>
>
>#include <stdio.h>
>#define SQR(a) a*a
>main ()
>{
>	int a = 10, b = 10, x, y;
>
>	x = SQR (++a);
>	y = SQR (b++);
>	printf ("%d\n", x);
>	printf ("%d\n", y);
>	a = 10;
>	b = 10;
>	printf ("%d\n", SQR (++a));
>	printf ("%d\n", SQR (b++));
>}
>


Hmmm...

THINK's "old" C compiler (version) 3.02 yields the following:

144
110
144
110


dk smith