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From: awm@shamash.cdc.com (Allan Magnuson)
Newsgroups: comp.lang.c
Subject: Swapping two variables in place
Message-ID: <26101@shamash.cdc.com>
Date: 22 Sep 90 04:46:50 GMT
Reply-To: awm@shamash.UUCP (Allan Magnuson)
Organization: Control Data Corporation, Arden Hills, MN
Lines: 4

There was a message a while back about not being able to create a good
#define function to swap two variables.

How about this one: #define swap(a,b) a^=b^=a^=b