/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_memset.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: thrieg <thrieg@student.42mulhouse.fr>      +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/10/14 15:40:57 by thrieg            #+#    #+#             */
/*   Updated: 2025/02/16 19:04:13 by thrieg           ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

void	*ft_memset(void *s, int c, size_t n)
{
	char				*str;
	unsigned long long	*str_packed;
	unsigned long long	cccccccc;
	size_t				i;

	str = (char *)s;
	while (n % sizeof(unsigned long long))
	{
		*str++ = (unsigned char)c;
		n--;
	}
	str_packed = (unsigned long long *)str;
	cccccccc = 0;
	i = 0;
	while (i < sizeof(unsigned long long))
	{
		cccccccc |= ((unsigned long long)(unsigned char)c) << (i * 8);
		i++;
	}
	while (n >= sizeof(unsigned long long))
	{
		*str_packed++ = cccccccc;
		n -= sizeof(unsigned long long);
	}
	return (s);
}