ft_putnbr_fd.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_putnbr_fd.c                                     :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: yxu <yxu@student.42tokyo.jp>               +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/09/24 13:03:57 by yxu               #+#    #+#             */
/*   Updated: 2023/09/24 18:35:48 by yxu              ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

static void	write_num(long int num, int fd)
{
	if (num >= 10)
		write_num(num / 10, fd);
	write(fd, &"0123456789"[num % 10], 1);
}

void	ft_putnbr_fd(int n, int fd)
{
	long int	num;

	num = n;
	if (num < 0)
	{
		write(fd, "-", 1);
		num = -num;
	}
	write_num(num, fd);
}