ft_memmove.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_memmove.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: yel-aoun <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/11/06 12:12:29 by yel-aoun          #+#    #+#             */
/*   Updated: 2021/11/12 17:24:57 by yel-aoun         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

void	*ft_memmove(void	*dst, const void	*src, size_t	len)
{
	size_t	i;

	i = 0;
	if (!dst && !src)
		return (0);
	if (((unsigned char *)dst) > ((unsigned char *)src))
	{
		while (i < len)
		{
			((unsigned char *)dst)[len - 1] = ((unsigned char *)src)[len - 1];
			len--;
		}
	}
	else
	{
		while (i < len)
		{
			((unsigned char *)dst)[i] = ((unsigned char *)src)[i];
			i++;
		}
	}
	return (dst);
}