ft_memmove.c

Go to the documentation of this file.

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_memmove.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: unite <marvin@42.fr>                       +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2019/09/04 22:24:03 by unite             #+#    #+#             */
/*   Updated: 2020/07/16 02:56:55 by unite            ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */
 
#include "libft.h"
 
void    *ft_memmove(void *dst, const void *src, size_t n)
{
    unsigned char   *s1;
    unsigned char   *s2;
 
    if (!dst && !src)
        return (NULL);
    s1 = (unsigned char *)dst;
    s2 = (unsigned char *)src;
    while (n > 0)
    {
        if (s1 < s2)
            *(s1++) = *(s2++);
        else
            s1[n - 1] = s2[n - 1];
        n--;
    }
    return (dst);
}