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Added <num>_to_str functions

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Maieul BOYER 2024-07-16 19:38:27 +02:00
parent aafd056f49
commit 698d1088e2
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21 changed files with 963 additions and 60 deletions
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99
stdme/src/convert/numbers_to_str.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* numbers_to_str.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/07/16 18:15:57 by maiboyer #+# #+# */
/* Updated: 2024/07/16 18:19:42 by maiboyer ### ########.fr */
/* */
/* ************************************************************************** */
#include "me/convert/numbers_to_str.h"
#include "me/mem/mem.h"
#include "me/str/str.h"
#include "me/types.h"
#include <stdint.h>
static t_error _check_base(t_str base)
{
t_usize i;
t_usize j;
i = 0;
if (base == NULL)
return (ERROR);
while (base[i] != '\0')
{
j = 1;
while (base[i + j] != '\0')
if (base[i + (j++)] == base[i])
return (ERROR);
i++;
}
if (i <= 1)
return (ERROR);
return (NO_ERROR);
}
static void _set_modulus(t_num_str_state *s)
{
s->modulus = 0;
s->base_len = str_len(s->base);
while (UINT64_MAX - s->modulus >= s->base_len)
s->modulus += s->base_len;
}
static char _get_char(t_u64 value, t_num_str_state *s)
{
if (value == 0)
s->zero = true;
else
s->zero = false;
return (s->base[value]);
}
static t_error _format_u64_base_innner(t_num_str_state *s)
{
char c;
if (s->value == 0)
return (s->buffer[s->idx++] = _get_char(0, s), NO_ERROR);
while (s->modulus)
{
c = _get_char(s->value / s->modulus, s);
if (s->zero || s->print)
{
s->buffer[s->idx++] = c;
s->print = true;
}
s->value = s->value % s->modulus;
s->modulus /= s->base_len;
}
return (NO_ERROR);
}
t_error _format_u64(t_num_str args, t_str *out)
{
t_num_str_state s;
t_str res;
if (_check_base(args.base))
return (ERROR);
if (args.prefix == NULL)
args.prefix = "";
mem_set_zero(&s, sizeof(s));
s.idx = 0;
if (args.is_nonnegative)
s.buffer[s.idx++] = '-';
_set_modulus(&s);
s.print = false;
if (_format_u64_base_innner(&s))
return (ERROR);
res = str_join(args.prefix, s.buffer);
if (res == NULL)
return (ERROR);
return (*out = res, NO_ERROR);
}