null
52 lines
1.4 KiB
C
52 lines
1.4 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: hexplor <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2023/11/13 15:57:24 by hexplor #+# #+# */
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/* Updated: 2024/07/01 17:59:13 by yantoine ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "libft.h"
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static int ft_isspace(char c)
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{
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if (c == '\t' || c == '\n' || c == '\v' \
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|| c == '\f' || c == '\r' || c == ' ')
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return (1);
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return (0);
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}
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static int ft_fsign(char c)
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{
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if (c == '-')
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return (-1);
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return (1);
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}
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int ft_atoi(const char *text)
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{
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long sign;
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long number;
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number = 0;
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sign = 1;
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while (ft_isspace(*text) == 1)
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text++;
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if (*text == '-' || *text == '+')
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{
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sign = ft_fsign(*text);
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text++;
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}
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while (ft_isdigit(*text) == 1)
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{
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number *= 10;
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number += *text - '0';
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text++;
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}
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return (sign * number);
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}
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