ft_memmove.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_memmove.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: agras <agras@student.42.fr>                +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/12/01 14:15:40 by agras             #+#    #+#             */
/*   Updated: 2021/12/07 21:15:11 by agras            ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include <stdlib.h>
#include <stddef.h>
#include "libft.h"
#include <stdio.h>

void	*ft_memmove(void *dest, const void *src, size_t n)
{
	if (!src && !dest && n > 0)
		return (NULL);
	if (n == 0)
		return (dest);
	if (src < dest)
	{
		while (n > 0)
		{
			((unsigned char *)dest)[n - 1] = ((unsigned char *)src)[n - 1];
			n--;
		}
	}
	else
		ft_memcpy(dest, src, n);
	return (dest);
}