Re: Yet another pointer related problem

From: Dan Pop (Dan.Pop_at_cern.ch)
Date: 03/03/04 

Date: 3 Mar 2004 13:54:30 GMT

In <c24e34$53j$1@news-rocq.inria.fr> Grumble <invalid@kma.eu.org> writes:

>sugaray wrote:
>
>> The purpose of the following program is to store all the arguments
>> passed to main() into an array of char, and print'em out onto the
>> screen.
>
>#include <stdio.h>
>
>int main(int argc, char **argv)
>{
> char **p;
>
> for (p = argv; *p != NULL; ++p) puts(*p);
>
> return 0;
>}
>
>or
>
>#include <stdio.h>
>
>int main(int argc, char **argv)
>{
> int i;
>
> for (i=0; i < argc; ++i) puts(argv[i]);
>
> return 0;
>}

Two examples of wasteful programs that can be combined into an
environmentally friendly one:

    #include <stdio.h>

    int main(int argc, char **argv)
    {
        while (*argv) puts(*argv++);
        return 0;
    }

Dan :-)

P.S. This example and the canonical strcpy loop are at the limit of
      what I consider readable C code. People who don't understand them
      cannot consider themselves C programmers and people who abhor them
      are likely to never like C. 

-- 
Dan Pop
DESY Zeuthen, RZ group
Email: Dan.Pop@ifh.de

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