ft_memmove.c


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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_memmove.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2019/10/07 10:03:21 by cacharle          #+#    #+#             */
/*   Updated: 2019/10/07 12:20:25 by cacharle         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include <stdlib.h>
#include <string.h>
#include "libft.h"

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

	if (dst == NULL && src == NULL)
		return (NULL);
    dst_cast = (t_byte*)dst;
    src_cast = (t_byte*)src;
    i = -1;
    if (dst_cast < src_cast)
        while (++i < len)
            dst_cast[i] = src_cast[i];
    else
        while (len-- > 0)
            dst_cast[len] =  src_cast[len];
    return (dst);
}