38 lines
1.3 KiB
C
38 lines
1.3 KiB
C
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/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_atoi.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: ajoly <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2022/07/25 13:48:15 by ajoly #+# #+# */
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/* Updated: 2022/07/25 13:48:19 by ajoly ### ########.fr */
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/* */
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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 result;
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int neg;
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i = 0;
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neg = 1;
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result = 0;
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while (str[i] == ' ' || str[i] == '\t' || str[i] == '\r'
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|| str[i] == '\n' || str[i] == '\v' || str[i] == '\f')
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i++;
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while (str[i] == '+' || str[i] == '-')
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{
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if (str[i] == '-')
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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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{
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result = result * 10 + (str[i] - 48);
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i++;
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}
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return (result * neg);
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}
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