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30 lines
397 B
C
30 lines
397 B
C
#include "libft.h"
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int ft_atoi(const char *str)
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{
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int value;
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size_t i;
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int is_negative;
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value = 0;
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i = 0;
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is_negative = 0;
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while (str[i] == ' ')
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i++;
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if (str[i] == '-')
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{
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is_negative = 1;
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i++;
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}
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else if (str[i] == '+')
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i++;
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while (str[i] && ft_isdigit(str[i]))
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{
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value *= 10 + ((int)(str[i] - '0'));
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}
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if (is_negative)
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return (value * -1);
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else
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return (value);
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}
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