1  /* ************************************************************************** */
 2  /*                                                                            */
 3  /*                                                        :::      ::::::::   */
 4  /*   ft_printf_xtoa.c                                   :+:      :+:    :+:   */
 5  /*                                                    +:+ +:+         +:+     */
 6  /*   By: ll-hotel <ll-hotel@student.42.fr>          +#+  +:+       +#+        */
 7  /*                                                +#+#+#+#+#+   +#+           */
 8  /*   Created: 2023/11/16 09:43:57 by ll-hotel          #+#    #+#             */
 9  /*   Updated: 2024/08/20 17:50:43 by ll-hotel         ###   ########.fr       */
10  /*                                                                            */
11  /* ************************************************************************** */
12  
13  #include "ft_basics.h"
14  #include "ft_math.h"
15  
16  char	*ft_xtoa(unsigned long value, short ox, short capital)
17  {
18  	const char *const	set = "0123456789abcdef";
19  	short				i;
20  	char				*a;
21  
22  	i = ft_log_b(value, 16) + 1;
23  	a = (char *)ft_calloc(i + 1 + (2 * ox), sizeof(char));
24  	if (!a)
25  		return (0);
26  	capital &= 1;
27  	capital *= 32;
28  	while (i)
29  	{
30  		a[(2 * ox) + --i] = set[value % 16] - capital * ((value % 16) > 9);
31  		value /= 16;
32  	}
33  	if (ox)
34  	{
35  		a[0] = '0';
36  		a[1] = 'x' - capital;
37  	}
38  	return (a);
39  }