NetNews Offline 2/NetNews Offline Volume 2.iso/news/comp/lang/c-part1/311

Text File | 1996-08-05 | 1.0 KB | 45 lines

Path: news.sni.de!news
From: Josef Moellers <[e-mail]>
Newsgroups: comp.lang.c
Subject: Re: Array Parameters
Date: 4 Jan 1996 07:52:36 GMT
Organization: Siemens Nixdorf Informationssysteme AG, Paderborn, Germany
Message-ID: <4cg104$[e-mail]>
References: <wayne.820650643@hawk> <4ce349$[e-mail]> <[e-mail]>
NNTP-Posting-Host: uranium.pdb.sni.de
X-Newsreader: NN version 6.5.0 #2

In <[e-mail]> Lawrence Kirby <[e-mail]> writes:

[ ... ]

>                            It is impossible
>to specify an array as a function parameter since, as in the example above,

Well, if you MUST pass an array by value and not by reference, wrap it
into a structure:

struct foo {
    int array[100];
};
...
func(struct foo bar)
{
    ...
    bar.array[23] = 25;
    ...
}
...
struct foo foo_array;
...
foo_array.array[23] = 7;
func(foo_array);
printf("%d\n", foo_array.array[23]);
...

will print "7", rather than "23".

Please note that this is very expensive at runtime.
--
Josef Moellers            [e-mail]