From:	Chris Mears <cmears AT bigpond DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Array swapping.
Organization:	only if absoultely necessary
Message-ID:	<be7ngssbe6fnhur5if8j27a3ct35gpj2e9@4ax.com>
References:	<390B75BB DOT 621F846A AT gtcom DOT net>
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Date:	Sun, 30 Apr 2000 12:45:54 +1000
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To:	djgpp AT delorie DOT com
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On Sat, 29 Apr 2000 19:52:27 -0400, that hoopy frood Krogg
<krogg DOT no DOT to DOT spam AT gtcom DOT net> wrote:

>
>I got 2 arrays of same type/size.
>
>float abc[50][50];
>float cba[50][50];
>
>how can i "swap" them?
>
>so that abc[x][y] will now point to cba[x][y] and
>vice versa...
>
>I dont care if it is portable,just so long as
>it works and can be done over and over.....

Uncompiled, untested.

void swap(float a[50][50], float b[50][50])
{
    int i;
    int j;

    for (i = 0 ; i < 50 ; i++)
    {
        for (j = 0 ; j < 50 ; j++)
        {
            float temp = a[i][j];
            a[i][j] = b[i][j];
            b[i][j] = a[i][j];
        }
    }
}


-- 
Chris Mears

ICQ: 36697123

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