ft_memcmp.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_memcmp.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: tpouget <cassepipe@ymail.com>              +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2020/05/14 17:04:37 by tpouget           #+#    #+#             */
/*   Updated: 2020/05/14 17:06:05 by tpouget          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

int	ft_memcmp(const void *s1, const void *s2, size_t n)
{
	unsigned char	*p1;
	unsigned char	*p2;
	size_t			i;

	p1 = (unsigned char*)s1;
	p2 = (unsigned char*)s2;
	i = 0;
	while (i < n)
	{
		if (p1[i] != p2[i])
			return (p1[i] - p2[i]);
		i++;
	}
	return (0);
}

/*
#include <string.h>
#include <stdio.h>

int	main(int argc, char** argv)
{
	char* a1 = argv[1];
	char* a2 = argv[2];
	printf("Result : %d\n", ft_memcmp(a1, a2, 0));
	printf("Result : %d\n", ft_memcmp(a1, a2, 4));
	return 0;
}
*/