Path: utzoo!mnetor!uunet!seismo!sundc!pitstop!sun!pepper!cmcmanis
From: cmcmanis%pepper@Sun.COM (Chuck McManis)
Newsgroups: comp.sys.amiga
Subject: Re: Byte/word/long alignment
Message-ID: <38670@sun.uucp>
Date: 13 Jan 88 01:32:48 GMT
References: <4366@garfield.UUCP>
Sender: news@sun.uucp
Reply-To: cmcmanis@sun.UUCP (Chuck McManis)
Distribution: na
Organization: Sun Microsystems, Mountain View
Lines: 14
Keywords: none

In article <4366@garfield.UUCP> john13@garfield.UUCP (John Russell) writes:
!>If I want to create an auto-initialized array of UBYTES, and then later
!>access each 4 bytes as a longword, can I ensure that the array is longword
!>aligned in some portable way (eg by placing it immediately after some other
!>32-bit global variable)? Will some compilers re-arrange declared storage
!>behind my back?

The system call AllocMem() will guaruntee that the data is longword aligned.
The only hitch being that you have to remember to free it before you exit.


--Chuck McManis
uucp: {anywhere}!sun!cmcmanis   BIX: cmcmanis  ARPAnet: cmcmanis@sun.com
These opinions are my own and no one elses, but you knew that didn't you.