42-libft/ft_memcpy.c at main · nephcode/42-libft · GitHub

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/* ************************************************************************** */
/*                                                                            */
/*                                                             /#/  |#/|#|    */
/*   ft_memcpy.c                                              /#/   |/ |#|    */
/*                                                           /#/      /#/     */
/*   By: nepcohen <nepcohen@learner.42.tech>                /#/      /#/      */
/*                                                         /#/____  |#| /|    */
/*   Created: 2026/05/20 15:37:20 by nepcohen             |#######| |#|/#|    */
/*   Updated: 2026/05/26 15:37:20 by nepcohen                   |#| NEPH_     */
/*                                                                            */
/* ************************************************************************** */
#include <stddef.h>
/* PROG ===================================================================== */
void	*ft_memcpy(void *dest, const void *src, size_t n)
{
	size_t				count;
	unsigned char		*d;
	unsigned const char	*s;

	d = (unsigned char*)dest;
	s = (unsigned const char*)src;
	count = 0;
	while (count < n)
	{
		d[count] = s[count];
		count++;
	}
	return (dest);
}

/* MAIN ===================================================================== */
#include <stdio.h>
#include <stdlib.h>

void display(void *playD, const void *playS, size_t playN)
{
        unsigned char *result;

        printf("Avant : `%s`\n Src `%s`\n", (char *)playD, (char *)playS);
        printf("Ram : `%p`, Replace : `%zu`\n", playD, playN);
        result = ft_memcpy(playD, playS, playN);
        printf("==========================\n");
        printf("Apres : `%s`\n Src : `%s`\n", (char *)result, (char *)playS);
        printf("Ram : `%p`, Replace : `%zu`\n", result, playN);
}

int	main(int argc, char **argv)
{
	if (argc != 4)
		printf("Merci de saisir les trois arguments");
	else
	{
		display(argv[1], argv[2], atoi(argv[3]));
	}
}


/* ========================================================================== */
/* END =================================================== 42_ ============== */
/* ======================================================= NEPHCODE ========= */