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From: jack@vu44.UUCP (Jack Jansen)
Newsgroups: net.lang.c
Subject: sizeof() and #if
Message-ID: <582@vu44.UUCP>
Date: Wed, 30-Jan-85 13:23:33 EST
Article-I.D.: vu44.582
Posted: Wed Jan 30 13:23:33 1985
Date-Received: Sun, 3-Feb-85 02:06:20 EST
Organization: VU Informatica, Amsterdam
Lines: 18
Xref: seismo net.lang.c:4200

I while ago, I tried something that I was almost sure would
fail (which it did), being:

#if sizeof(struct foobar) != BLKSIZ

I *know* why this fails, but still the most recent definition
I saw of #if is
#if <constant-expression>
which includes sizeof().
Does anyone know whether the new standard has changed this, or
changed the definition of constant-expression not to include
sizeof()?
Or is everyone supposed to integrate the preprocessor into the
compiler (yuck)?
-- 
	Jack Jansen, {seismo|philabs|decvax}!mcvax!vu44!jack
	or				       ...!vu44!htsa!jack
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