89 lines
1.8 KiB
C
89 lines
1.8 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_atoi_base.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: whaffman <whaffman@student.codam.nl> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2024/06/12 09:17:21 by whaffman #+# #+# */
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/* Updated: 2024/06/12 18:55:08 by whaffman ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include <stdio.h>
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int ft_strlen(char *str)
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{
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int i;
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i = 0;
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while (*str++)
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i++;
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return (i);
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}
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int ft_isrepeating(char *str)
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{
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int i;
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while (*str)
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{
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i = 1;
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while (str[i])
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{
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if (str[0] == str[i])
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return (1);
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i++;
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}
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str++;
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}
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return (0);
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}
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int ft_indexof(char c, char *str)
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{
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int result;
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result = 0;
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while (str[result])
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{
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if (str[result] == c)
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return (result);
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result++;
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}
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return (-1);
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}
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int ft_atoi_base(char *str, char *base)
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{
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int sign;
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int res;
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while (ft_indexof(*str, " \f\n\r\t\v") >= 0)
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str++;
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res = 0;
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sign = 1;
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while (*str == '-' || *str == '+')
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{
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if (*str == '-')
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sign *= -1;
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str++;
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}
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while (ft_indexof(*str, base) >= 0)
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res = ft_strlen(base) * res + ft_indexof(*str++, base);
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return (sign * res);
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}
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#ifdef DEBUG
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int main(void)
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{
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int r;
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r = ft_atoi_base("-2147483648", "0123456789");
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printf("%d", r);
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return (0);
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}
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#endif
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