Exos

ex2/ft_iterative_power.c

@@ -0,0 +1,81 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_iterative_power.c                               :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: lclerel- <lclerel-@learner.42.tech>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2026/03/09 10:22:48 by lclerel-          #+#    #+#             */
+/*   Updated: 2026/03/09 10:32:44 by lclerel-         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <unistd.h>
+
+void	ft_putnbr(int nb)
+{
+	char	value;
+
+	if (nb == -2147483648)
+	{
+		write(1, "-2147483648", 11);
+		return ;
+	}
+	if (nb < 0)
+	{
+		write(1, "-", 1);
+		nb = -nb;
+	}
+	if (nb > 9)
+	{
+		ft_putnbr(nb / 10);
+	}
+	value = nb % 10 + '0';
+	write(1, &value, 1);
+}
+
+int	ft_iterative_power(int nb, int power)
+{
+	int		res;
+
+	res = 1;
+	if (power < 0)
+		return (0);
+	if (power == 0)
+		return (1);
+	while (power > 0)
+	{
+		res = res * nb;
+		power--;
+	}
+	return (res);
+}
+
+/*int	main(void)
+{
+	int		nb;
+
+	write(1, "Test avec puissance de 5:", 25);
+	write(1, "\n", 1);
+	nb = ft_iterative_power(5, 5);
+	ft_putnbr(nb);
+	write(1, "\n", 1);
+	write(1, "Test avec puissance de 10:", 26);
+	write(1, "\n", 1);
+	nb = ft_iterative_power(10, 10);
+	ft_putnbr(nb);
+	write(1, "\n", 1);
+	write(1, "Test avec puissance de 20:", 26);
+	write(1, "\n", 1);
+	nb = ft_iterative_power(20, 20);
+	ft_putnbr(nb);
+	write(1, "\n", 1);
+	write(1, "(20 depasse l'int limit, resultat mis a 0)", 42);
+	write(1, "\n", 1);
+	write(1, "Test avec puissance de 0:", 25);
+	write(1, "\n", 1);
+	nb = ft_iterative_power(0, 0);
+	ft_putnbr(nb);
+	write(1, "\n", 1);
+	return (0);
+}*/