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Path: utzoo!mnetor!seismo!vrdxhq!bms-at!stuart
From: stuart@bms-at.UUCP (Stuart D. Gathman)
Newsgroups: comp.lang.c
Subject: Re: Determing alignment of (char *) pointer
Message-ID: <299@bms-at.UUCP>
Date: Sun, 7-Dec-86 20:25:41 EST
Article-I.D.: bms-at.299
Posted: Sun Dec  7 20:25:41 1986
Date-Received: Mon, 8-Dec-86 02:05:48 EST
References: <1510@mit-trillian.MIT.EDU>
Organization: Business Management Systems, Inc., Fairfax, VA
Lines: 13
Summary: This is like date checking

In article <1510@mit-trillian.MIT.EDU>, newman@mit-trillian.MIT.EDU (Ron Newman) writes:

> I am using a (char *) pointer to store a sequence of differently-typed

> In particular, I need to determine whether the pointer is 32-bit
> aligned before attempting to store a long by casting it to a (long *).

Cast it to a (long *) and back again then see if it changed.

char *p;
if ( (char *) (long *) p == p) . . .
-- 
Stuart D. Gathman	<..!seismo!dgis!bms-at!stuart>