77 lines
1.8 KiB
C
77 lines
1.8 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_convert.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: shou <shou@student.42berlin.de> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2023/03/27 12:05:10 by shou #+# #+# */
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/* Updated: 2023/04/02 19:20:00 by tischmid ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "ft_convert.h"
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#include <limits.h>
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int rm_spaces(char *str, int *ptr_i)
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{
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int count;
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int i;
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i = 0;
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count = 1;
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while ((str[i] >= 9 && str[i] <= 13) || str[i] == 32)
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i++;
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while ((str[i] == 43 || str[i] == 45))
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{
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if (str[i] == 45)
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count *= -1;
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i++;
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}
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*ptr_i = i;
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return (count);
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}
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int ft_atoi(char *str)
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{
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int sign;
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int result;
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int i;
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i = 0;
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result = 0;
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sign = rm_spaces(str, &i);
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while (str[i] && str[i] >= 48 && str[i] <= 57)
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{
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result *= 10;
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result += str[i] - 48;
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i++;
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}
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result *= sign;
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return (result);
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}
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int ft_itoa(char *buf, int nb)
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{
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int offset;
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if (nb > 9)
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{
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offset = ft_itoa(buf, nb / 10);
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return (offset + ft_itoa(buf + offset, nb % 10));
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}
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else if (nb == INT_MIN)
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{
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offset = ft_itoa(buf, nb / 10);
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return (ft_itoa(buf + offset + 1, -(nb % 10)));
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}
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else if (nb < 0)
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{
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*buf = '-';
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return (ft_itoa(buf + 1, -nb));
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}
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*buf = nb % 10 + '0';
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*(buf + 1) = 0;
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return (1);
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}
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