Newsgroups: comp.lang.c
Path: utzoo!henry
From: henry@utzoo.uucp (Henry Spencer)
Subject: Re: sizeof struct
Message-ID: <1989Sep6.163747.20267@utzoo.uucp>
Organization: U of Toronto Zoology
References: <29722@pbhya.PacBell.COM>
Date: Wed, 6 Sep 89 16:37:47 GMT

In article <29722@pbhya.PacBell.COM> afh@PacBell.COM (Alan Hobesh) writes:
>The following c code prints the size of the definded structure to be 44,
>when compiled on an AT&T 3B20 running UNIX V5.2.1....
>However, when the code is downloaded to a PC and compiled using Turbo C,
>the size of the structure is reported to be 42.
>
>Why is there a difference and which is the correct size?

There is a difference because compilers use different rules for filling
in structures.  Both sizes are correct; code that assumes *any* specific
size for a struct is wrong.
-- 
V7 /bin/mail source: 554 lines.|     Henry Spencer at U of Toronto Zoology
1989 X.400 specs: 2200+ pages. | uunet!attcan!utzoo!henry henry@zoo.toronto.edu