ft_memcpy.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_memcpy.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: cado-car <cado-car@student.42sp.org.br>    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/07/30 20:22:59 by cado-car          #+#    #+#             */
/*   Updated: 2021/07/31 11:22:29 by cado-car         ###   ########lyon.fr   */
/*                                                                            */
/* ************************************************************************** */

/*
*	LIBRARY
*	#include <string.h>
*	DESCRIPTION
*	The memcpy() function copies n bytes from memory area src to memory area dst.  
*	If dst and src overlap, behavior is undefined.
*	PARAMETERS
*	#1. The destiny pointer in which to copy.
*	#2. The source pointer to copy.
*	#3. The number of bytes to copy the source string.
*	RETURN VALUES
*	The memcpy() function returns the original value of dst.
*/

#include "libft.h"

void	*ft_memcpy(void *dst, const void *src, size_t n)
{
	size_t			i;
	unsigned char	*dstc;
	unsigned char	*srcc;

	if (dst == NULL && src == NULL)
		return (NULL);
	i = 0;
	dstc = (unsigned char *)dst;
	srcc = (unsigned char *)src;
	while (i < n)
	{
		dstc[i] = srcc[i];
		i++;
	}
	return (dst);
}