ft_memmove.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_memmove.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: hykang <hykang@student.42seoul.kr>         +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/01/25 16:04:37 by hykang            #+#    #+#             */
/*   Updated: 2022/01/25 17:31:37 by hykang           ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

void	*ft_memmove(void *dst, const void *src, size_t len)
{
	unsigned char	*new_dst;
	unsigned char	*new_src;

	if (!dst && !src)
		return (NULL);
	if (dst < src)
		return (ft_memcpy(dst, src, len));
	new_dst = dst;
	new_src = (unsigned char *)src;
	while (len--)
		*(new_dst + len) = *(new_src + len);
	return (dst);
}