ft_memmove.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_memmove.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: ylagtab <ylagtab@student.42.fr>            +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2019/03/30 15:40:18 by ylagtab           #+#    #+#             */
/*   Updated: 2020/10/14 12:02:00 by ylagtab          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

void	*ft_memmove(void *dst, const void *src, size_t n)
{
	unsigned char	*d;
	unsigned char	*s;
	size_t			i;

	if (dst == NULL || src == NULL)
		return (NULL);
	d = (unsigned char *)dst;
	s = (unsigned char *)src;
	if (dst < src)
	{
		i = 0;
		while (i < n)
		{
			d[i] = s[i];
			i++;
		}
		return (dst);
	}
	while (n--)
		d[n] = s[n];
	return (dst);
}