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print_integer.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* print_integer.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: abkssiba <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2019/12/09 14:08:27 by abkssiba #+# #+# */
/* Updated: 2019/12/14 13:49:28 by abkssiba ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_printf.h"
static int manage_int(int *nbr, int *len, int *p, t_flags *flg)
{
int count;
int sign;
sign = 1;
count = 0;
*len = get_int_digits(*nbr);
if (*nbr < 0)
{
*nbr *= -1;
*len -= 1;
sign = -1;
}
(*p) = (flg->precision != -1 && flg->precision > *len)
? flg->precision : *len;
if (sign < 0)
flg->width--;
if (!*nbr && !flg->precision)
{
flg->width++;
count--;
}
return (count);
}
static void width_int(t_flags flg, int p, int *count)
{
if (!flg.minus && flg.width)
{
if (!flg.zero)
*count += apply_width_int(flg.width - p);
else if (flg.precision > 0)
*count += apply_width_int(flg.width - p);
else if (flg.precision == 0)
*count += apply_width_int(flg.width - p);
}
}
static void manage_values(t_flags *flg, int nbr, int *sign)
{
flg->precision = (nbr < 0 && flg->precision < 0 && flg->precision != -1)
? flg->precision - 1 : flg->precision;
if (nbr < 0 && flg->precision < 0 && flg->precision != -1)
flg->precision = flg->width - 1;
*sign = (nbr < 0) ? -1 : 1;
}
static int print_res_int(t_flags flg, int p, int len, int nbr)
{
int count;
count = 0;
apply_zero_int(p - len);
if ((flg.precision != 0 || nbr))
ft_putnbr_fd(nbr, 1);
if (flg.minus)
count += apply_width_int(flg.width - p);
return (count);
}
int print_integer(va_list *arg, t_flags flg)
{
int count;
int nbr;
int len;
int p;
int sign;
count = 0;
nbr = va_arg(*arg, int);
manage_values(&flg, nbr, &sign);
count += manage_int(&nbr, &len, &p, &flg);
if (nbr < 0)
{
flg.width = (nbr == INT32_MIN) ? flg.width : flg.width++;
if (flg.precision != -1)
flg.precision++;
}
width_int(flg, p, &count);
if (sign < 0 && nbr != INT32_MIN)
count += ft_putchar('-');
if (!flg.minus && flg.zero && flg.precision <= -1)
count += apply_zero_int(flg.width - len);
count += print_res_int(flg, p, len, nbr);
if (nbr == INT32_MIN)
count++;
return (count + p);
}