ft_memmove.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_memmove.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: jsalome <jsalome@student.42.fr>            +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2019/09/25 14:32:50 by jsalome           #+#    #+#             */
/*   Updated: 2019/09/29 15:02:10 by jsalome          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

void		*ft_memmove(void *d, const void *s, size_t n)
{
	unsigned char		*dest;
	unsigned char		*src;

	dest = (unsigned char *)d;
	src = (unsigned char *)s;
	if (d == s)
		return (d);
	else if (dest < src)
	{
		while (n--)
			*dest++ = *src++;
	}
	else
	{
		dest += n;
		src += n;
		while (n--)
			*--dest = *--src;
	}
	return (d);
}