ft_print_pointer_type.c

#include "ft_printf.h"

void	ft_print_pointer_width(t_arg_param param, int *print_c)
{
	int start_chars;

	start_chars = 0;
	if ((param.precision - *print_c + 2) > 0 && (start_chars = 1))
		write(1, "0x", 2);
	while ((param.precision - *print_c + 2) > 0 && ++(*print_c))
		write(1, "0", 1);
	if (!(FLG_MINUS & param.flag) && (param.width - *print_c) > 0)
	{
		if ((param.precision - *print_c) > 0)
		{
			param.width -= param.precision - *print_c;
			param.precision += param.width - *print_c;
		}
		while ((param.width - *print_c) > 0 && ++(*print_c))
			write(1, " ", 1);
		if (start_chars == 0 && (start_chars = 1))
			write(1, "0x", 2);
	}
	if (start_chars == 0)
		write(1, "0x", 2);
}

void	ft_print_pointer(unsigned long int num, t_arg_param param, int *print_c)
{
	int		hex;
	char	c;

	hex = num % 16;
	if (hex < 10)
		c = hex + '0';
	else
		c = hex - 10 + 'a';
	num /= 16;
	(*print_c)++;
	if (num != 0)
		ft_print_pointer(num, param, print_c);
	else
		ft_print_pointer_width(param, print_c);
	write(1, &c, 1);
}

int		ft_print_pointer_two(t_arg_param param)
{
	write(1, "0x", 2);
	if (!param.precision)
		return (2);
	else
		write(1, "0", 1);
	return (3);
}

int		ft_print_pointer_num_precision_null(t_arg_param param)
{
	if ((FLG_MINUS & param.flag))
		write(1, "0x", 2);
	ft_print_repeat_char(' ', param.width - 2);
	if (!(FLG_MINUS & param.flag))
		write(1, "0x", 2);
	return ((((param.width - 2) < 0 ? 2 : param.width) - 2) + 2);
}

int		ft_print_pointer_type(t_arg_param param, va_list *arg_ptr)
{
	int					print_c;
	unsigned long int	num;

	num = (unsigned long int)va_arg(*arg_ptr, void*);
	print_c = 2;
	if (param.precision >= param.width)
		param.width = 0;
	if (!num && param.width == 2)
		return (ft_print_pointer_two(param));
	if (num == 0 && param.precision == 0)
		return (ft_print_pointer_num_precision_null(param));
	ft_print_pointer(num, param, &print_c);
	if (!(FLG_MINUS & param.flag) && print_c == param.width - 1
		&& param.precision == 0)
		print_c = param.width;
	if (FLG_MINUS & param.flag)
		while ((param.width - print_c) > 0 && ++print_c)
			write(1, " ", 1);
	return (print_c);
}