Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!lakesys!chad
From: chad@lakesys.UUCP (Chad Gibbons)
Newsgroups: comp.lang.c
Subject: Re: Structure padding
Message-ID: <518@lakesys.UUCP>
Date: 6 Apr 89 18:13:22 GMT
References: <440@front.se>
Reply-To: chad@lakesys.UUCP (Chad Gibbons)
Organization: Lake Systems - Milwaukee, Wisconsin
Lines: 18

In article <440@front.se> zap@front.se (Svante Lindahl) writes:
|Consider a struct consisting of a few character arrays, for example:
|	stuct foo {
|	    char bar[3];
|	    char baz[6];
|	    char frotz[4];
|	} fred;
|I need to know if I can safely assume that there will not be any
|padding between the arrays.

	I don't think so.  I know for sure that Intel machines do place
padding in appropriate areas in order to force alignment on even word
addresses.  I believe that Microsoft compilers have an option to
eliminate this, but that slows down the program.  I had a list of
machines that require objects to start on even word addresses, but I
can't find it....anyone? anyone?
-- 
D. Chadwick Gibbons, chad@lakesys.lakesys.com, ...!uunet!marque!lakesys!chad