34 lines
1.2 KiB
C
34 lines
1.2 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: grobledo <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2023/02/04 14:30:22 by grobledo #+# #+# */
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/* Updated: 2023/02/04 14:30:24 by grobledo ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "libft.h"
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int ft_atoi(const char *str)
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{
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int i;
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int is_neg;
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int number;
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i = 0;
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is_neg = 1;
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number = 0;
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while ((str[i] >= 9 && str[i] <= 13) || str[i] == 32)
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i++;
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if (str[i] == '-' || str[i] == '+')
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{
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if (str[i] == '-')
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is_neg *= -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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number = (number * 10) + str[i++] - 48;
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return (number * is_neg);
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}
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