Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!purdue!ames!haven!adm!smoke!gwyn
From: gwyn@smoke.BRL.MIL (Doug Gwyn)
Newsgroups: comp.lang.c
Subject: Re: C union problems (or is a pointer a pointer?)
Keywords: C, Pascal, pointer, union, variant
Message-ID: <10151@smoke.BRL.MIL>
Date: 27 Apr 89 12:52:37 GMT
References: <15058@sequent.UUCP> <2700@tekcae.CAX.TEK.COM>
Reply-To: gwyn@brl.arpa (Doug Gwyn)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 6

In article <2700@tekcae.CAX.TEK.COM> kurtk@tekcae.CAX.TEK.COM (Kurt Krueger) writes:
>Casting a pointer is really a NOP

No!  This is a common misconception.  Pointer casting can involve change
in representation, and when converting between pointer to char and
pointers to wider types it often does.