Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!apple!altos!altos86!clp
From: clp@altos86.Altos.COM (Chuck L. Peterson)
Newsgroups: comp.lang.c
Subject: Using distributive property to optimize.
Message-ID: <229@altos86.Altos.COM>
Date: 2 Feb 90 22:29:21 GMT
Organization: Altos Computer Systems, San Jose, CA
Lines: 12

We just noticed that this old 286 XENIX compiler we have floating
around changes the statement:
	n = a - (b + c);
To this:
	n = a - b - c;

Anyone know if it is valid for a C Compiler to do this?
The two will most certainly give different results when
dealing with overflow/underflow conditions.

Chuck L. Peterson
clp@altos.com