Libft/ft_memmove.c at master · Meetchou/Libft · GitHub

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_memmove.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: kamanfo <marvin@42.fr>                     +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/11/22 14:02:28 by kamanfo           #+#    #+#             */
/*   Updated: 2021/11/23 13:07:30 by kamanfo          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

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

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