print_p.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   print_p.c                                          :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: jilai <jilai@student.42.fr>                +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/04/04 20:02:03 by jilai             #+#    #+#             */
/*   Updated: 2024/04/04 20:02:05 by jilai            ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "ft_printf.h"

int	print_p(unsigned long p, t_fopt *opt)
{
	int	len;

	len = 0;
	if (!p)
		opt->width -= ft_strlen(NULLPTR) - 1;
	else
		opt->width -= 2;
	if (opt->left == 1)
		len += print_ptr(p);
	len += put_spa_zer(opt->width, len_in_hexl(p), 0);
	if (opt->left == 0)
		len += print_ptr(p);
	return (len);
}

int	print_ptr(unsigned long p)
{
	int	len;

	len = 0;
	if (!p)
	{
		len += print_str(NULLPTR);
		return (len);
	}
	len += print_str("0x");
	print_in_hex(p);
	len += len_in_hexl(p);
	return (len);
}

void	print_in_hex(unsigned long n)
{
	if (n >= 16)
	{
		print_in_hex(n / 16);
		print_in_hex(n % 16);
	}
	else
	{
		if (n <= 9)
			print_char(n + '0');
		else if (n > 9)
			print_char((n - 10) + 'a');
	}
}