Path: utzoo!mnetor!uunet!mcvax!ukc!eagle!icdoc!cam-cl!am
From: am@cl.cam.ac.uk (Alan Mycroft)
Newsgroups: comp.lang.c
Subject: x++   !=   (x+=1)-1
Message-ID: <1138@jenny.cl.cam.ac.uk>
Date: 1 Mar 88 10:59:40 GMT
References: <51200001@upba> <4030@megaron.arizona.edu>
Reply-To: am@cl.cam.ac.uk (Alan Mycroft)
Organization: U of Cambridge Comp Lab, UK
Lines: 7

In article <4030@megaron.arizona.edu> mike@arizona.edu (Mike Coffin) writes:
>A simple way to understand the postincrement operator is to note that
>(x++) is equivalent to ((x += 1) - 1).

Not if x is a floating type.
Probably also not if x is a signed integral type and has a 'sticky'
overflow value (but then the program is undefined anyway).