Re: memcpy et char

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Article #15497

#15497

From: Harpo
Date: Fri, 23 Sep 2005 15:25

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1325 bytes

Targeur fou wrote:

> 
> exple :
> #define SIZE_ARR 50
> double arr1[SIZE_ARR];
> double arr2[SIZE_ARR];
> double * pData1;
> double * pData2;
> /* ... */
> /* with arrays */
> memcpy(arr2, arr1, sizeof(double)*SIZE_ARR);

Je pr�f�rerais �crire
memcpy( arr2, arr1, sizeof( * arr1 ) * SIZE_ARR ) ;

car si on change le type de '* arr1' en disons triple, il n'est pas
n�cessaire de changer cette instruction.

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From: Harpo <trashcan@hotmail.com>
Subject: Re: memcpy et char
Newsgroups: fr.comp.lang.c
Date: Fri, 23 Sep 2005 17:25:36 +0200
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