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From: jv@mhres.mh.nl (Johan Vromans)
Newsgroups: comp.lang.c
Subject: Re: Does ANSI C have lengthof() ?
Message-ID: <1265@mhres.mh.nl>
Date: Fri, 4-Sep-87 03:17:34 EDT
Article-I.D.: mhres.1265
Posted: Fri Sep  4 03:17:34 1987
Date-Received: Sat, 5-Sep-87 16:46:38 EDT
References: <9154@brl-adm.ARPA>
Organization: Multihouse N.V., The Netherlands
Lines: 23

In article <9154@brl-adm.ARPA> neville%zodiac@ads.arpa (Neville Newman) writes:
>i wholeheartedly agree - lengthof() is such an easy macro it need not be
>implemented in the compiler, and typeof() is a very useful pseudo-function
>to have in the compiler.

I think there is more need for these functions in the pre-processor:

    # if sizeof (char*) == sizeof (int)
    typedef int numptr;
    # else
    # if sizeof (char*) == sizeof (long)
    typedef long numptr;
    # endif
    # endif
    # if unknown (typeof (numptr))
    .... error ....
    # endif


-- 
Johan Vromans                              | jv@mh.nl via European backbone
Multihouse N.V., Gouda, the Netherlands    | uucp: ..{?????!}mcvax!mh.nl!jv
"It is better to light a candle than to curse the darkness"