ft_memmove.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_memmove.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: vbrazas <vbrazas@student.unit.ua>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2017/10/30 17:11:58 by vbrazas           #+#    #+#             */
/*   Updated: 2017/11/19 14:54:38 by vbrazas          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

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

	if (len == 0)
		return (dst);
	s = (unsigned char *)src;
	d = (unsigned char *)dst;
	i = 0;
	if (dst > src)
	{
		while (--len != 0)
			d[len] = s[len];
		d[len] = s[len];
	}
	else
	{
		while (i < len)
		{
			d[i] = s[i];
			i++;
		}
	}
	return (d);
}