Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/5/84; site uvacs.UUCP
Path: utzoo!watmath!clyde!burl!ulysses!gamma!epsilon!zeta!sabre!petrus!bellcore!decvax!mcnc!ncsu!uvacs!rwl
From: rwl@uvacs.UUCP (Ray Lubinsky)
Newsgroups: net.lang,net.lang.c
Subject: Re: Re: ... C builtin functions?
Message-ID: <359@uvacs.UUCP>
Date: Sun, 13-Apr-86 11:52:04 EST
Article-I.D.: uvacs.359
Posted: Sun Apr 13 11:52:04 1986
Date-Received: Wed, 16-Apr-86 04:58:07 EST
References: <41@cbmvax.cbmvax.cbm.UUCP> <824@ttrdc.UUCP> <202@chronon.UUCP>
Organization: U.Va. CS in Charlottesville VA
Lines: 15
Xref: watmath net.lang:2355 net.lang.c:8568

> >C has standard built-in functions????
  
> Well, how about sizeof(foo)?
> 
> It looks like a function invocation, and is known and understood
> by the compiler...

The thing is, sizeof() evaluates to a constant at run time, just like
'c'<<3  or  BUFSIZ  .  That makes it a pretty trivial function.  All it
really does is give you a portable, automatic facility for referring to
system dependencies.
-- 

Ray Lubinsky	University of Virginia, Dept. of Computer Science
		UUCP: ...!cbosgd!uvacs!rwl or ...!decvax!mcnc!ncsu!uvacs!rwl