38 lines
1.3 KiB
C
38 lines
1.3 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_power.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: thrieg <thrieg@student.42mulhouse.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2025/01/07 14:57:23 by thrieg #+# #+# */
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/* Updated: 2025/02/16 19:04:15 by thrieg ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "libft.h"
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ssize_t ft_power(ssize_t nb, ssize_t power)
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{
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ssize_t answer;
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ssize_t i;
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if (power < 0)
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return (0);
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if (power == 0)
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return (1);
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if (power % 2 == 0)
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return (ft_power(nb * nb, power / 2));
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answer = nb;
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i = 1;
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while (i < power)
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{
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if ((power - i) % 2 == 0)
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{
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return (answer * ft_power(nb, (power - i)));
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}
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answer *= nb;
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i++;
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}
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return (answer);
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}
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