66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_atoi.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: cchauvet <cchauvet@student.42angoulem +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2022/07/19 10:08:23 by cchauvet #+# #+# */
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/* Updated: 2022/07/25 18:42:46 by cchauvet ### ########.fr */
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/* */
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/* ************************************************************************** */
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int ft_whitespaces(char *str)
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{
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char *space;
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int j;
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int i;
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space = "\n\r\v\t\n ";
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i = 0;
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j = 0;
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while (space[i] != 0)
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{
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while (str[j] == space[i])
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{
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if (str[j] == 0)
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return (j);
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i = 0;
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j++;
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}
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i++;
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}
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return (j);
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}
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int ft_atoi(char *str)
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{
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int i;
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int sign;
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int nbr;
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sign = 1;
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nbr = 0;
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i = ft_whitespaces(str);
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while (str[i] == '+' || str[i] == '-')
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{
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if (str[i] == '-')
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sign = sign * -1;
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i++;
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}
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while (str[i] >= '0' && str[i] <= '9')
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{
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nbr = nbr * 10 + str[i] - '0';
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i++;
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}
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return (nbr * sign);
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}
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#include <stdio.h>
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int main ()
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{
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printf("%d", ft_atoi(" +--+-++--00000132563hhi2167"));
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}
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