41 lines
1.2 KiB
C
41 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: madumerg <madumerg@student.42angouleme. +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2023/10/30 15:05:03 by madumerg #+# #+# */
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/* Updated: 2024/03/26 16:17:58 by madumerg ### ########.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 r;
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int s;
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i = 0;
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r = 0;
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s = 1;
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if (!str)
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return (0);
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while (str[i] == 32 || (str[i] >= 9 && str[i] <= 13))
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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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s = -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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r = r * 10 + str[i] - '0';
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i++;
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}
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return (r *= s);
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}
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