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From: jss@ulysses.UUCP (Jerry Schwarz)
Newsgroups: net.lang,net.lang.c
Subject: Re: structured assembler (BASIC)  [Really: C builtin functions?]
Message-ID: <1227@ulysses.UUCP>
Date: Fri, 11-Apr-86 11:24:14 EST
Article-I.D.: ulysses.1227
Posted: Fri Apr 11 11:24:14 1986
Date-Received: Sat, 12-Apr-86 22:03:36 EST
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Organization: AT&T Bell Laboratories, Murray Hill
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Xref: watmath net.lang:2337 net.lang.c:8524

> You are sort of right,  but sizeof qualifies as a builtin function, 
> even though it is a compile-time function vs run-time.   Anyone disagree?

It is not a function at all. It is a language construct that
syntactically is an operator but sematically is not a function.  In
the form "sizeof expr" C does not evaluate what appears to be an
argument. And in the form "sizeof(type-name)" what appears to be an
argument does not have a value.