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add libft, add gitignore

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tomoron
2024-11-27 17:49:04 +01:00
parent b19228dccd
commit 3c467a5fd5
70 changed files with 2655 additions and 3 deletions
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97
libft/ft_printf/ft_print_hex_ptr.c Executable file
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@ -0,0 +1,97 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_print_hex_ptr.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: tomoron <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/11/05 15:58:57 by tomoron #+# #+# */
/* Updated: 2023/11/05 15:58:58 by tomoron ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_printf.h"
int ft_calc_hex_len(long unsigned int n, t_flags flags)
{
int res;
res = 1;
if (n == 0 && flags.precision == 0)
return (0);
while (n > 15)
{
res++;
n /= 16;
}
return (res);
}
void ft_put_hex(unsigned long int n, char mode)
{
if (n > 15)
ft_put_hex(n / 16, mode);
if (mode == 'L')
write(1, &"0123456789abcdef"[n % 16], 1);
if (mode == 'U')
write(1, &"0123456789ABCDEF"[n % 16], 1);
}
size_t ft_print_ptr(void *ptr, t_flags flags)
{
int len;
int res;
res = 0;
if (!ptr)
return (ft_print_str("(nil)", flags));
len = ft_calc_hex_len((long unsigned int)ptr, flags) + 2;
if (flags.min_width && !flags.left_justify)
res += ft_fill_width(' ', flags.min_width - len);
ft_putstr("0x");
ft_put_hex((unsigned long int)ptr, 'L');
if (flags.min_width && flags.left_justify)
res += ft_fill_width(' ', flags.min_width - len);
return (res + len);
}
size_t ft_write_blank(int blank_len, t_flags flags, char mode)
{
size_t res;
res = 0;
if (blank_len > 0 && ((flags.left_justify && mode == 'A')
|| (!flags.left_justify && mode == 'B')))
{
if (flags.zero_padding && flags.precision == -1)
res += ft_fill_width('0', blank_len);
else
res += ft_fill_width(' ', blank_len);
}
return (res);
}
size_t ft_print_hex(unsigned int nb, t_flags flags, char mode)
{
int blank_len;
int zero_len;
int number_len;
size_t res;
number_len = ft_calc_hex_len(nb, flags);
res = number_len;
zero_len = 0;
if (flags.precision > number_len)
zero_len = flags.precision - number_len;
blank_len = flags.min_width - zero_len - number_len;
blank_len -= flags.zero_x_prefix * 2;
res += ft_write_blank(blank_len, flags, 'B');
if (flags.zero_x_prefix && nb && mode == 'L')
res += ft_putstr("0x");
if (flags.zero_x_prefix && nb && mode == 'U')
res += ft_putstr("0X");
res += ft_fill_width('0', zero_len);
if (flags.precision != 0 || nb != 0)
ft_put_hex(nb, mode);
res += ft_write_blank(blank_len, flags, 'A');
return (res);
}