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Path: utzoo!henry
From: henry@utzoo.UUCP (Henry Spencer)
Newsgroups: net.lang.c
Subject: Re: parens around sizeof arg
Message-ID: <5125@utzoo.UUCP>
Date: Wed, 27-Feb-85 13:35:32 EST
Article-I.D.: utzoo.5125
Posted: Wed Feb 27 13:35:32 1985
Date-Received: Wed, 27-Feb-85 13:35:32 EST
References: <8048@brl-tgr.ARPA>, <607@ncoast.UUCP>
Organization: U of Toronto Zoology
Lines: 12

> Style for you guys, necessity for others.  The only time I use sizeof is
> in such expressions as, "sizeof(struct foo)"; and our compiler doesn't
> realize that "struct" gets a following name, so "sizeof struct foo" gets
> me a syntax error.

The compiler is correct; the syntax error is real.  Look carefully at the
definition of sizeof:  its usage is "sizeof object" or "sizeof(type)".
The parentheses are *not* optional in the second case.  This is part of
the reason why many people put the parentheses in for all sizeofs.
-- 
				Henry Spencer @ U of Toronto Zoology
				{allegra,ihnp4,linus,decvax}!utzoo!henry