From 1b3f74710e6355d07e8cd404577f10bedc724d2a Mon Sep 17 00:00:00 2001
From: lclerel- lclerel- <lclerel-@f1r4s23.paris.42.school>
Date: Fri, 13 Mar 2026 14:33:55 +0100
Subject: [PATCH] update

---
 ex4/ft_is_sort.c | 73 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 ex4/ft_is_sort.c

diff --git a/ex4/ft_is_sort.c b/ex4/ft_is_sort.c
new file mode 100644
index 0000000..93f8977
--- /dev/null
+++ b/ex4/ft_is_sort.c
@@ -0,0 +1,73 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_is_sort.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: lclerel- <lclerel-@learner.42.tech>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2026/03/13 14:01:47 by lclerel-          #+#    #+#             */
+/*   Updated: 2026/03/13 14:30:30 by lclerel-         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <unistd.h>
+
+int	ft_is_sort(int *tab, int length, int (*f)(int, int))
+{
+	int	i;
+	int	cs;
+	int	ds;
+
+	i = 0;
+	cs = 1;
+	ds = 1;
+	if (length <= 1)
+	{
+		return (1);
+	}
+	while (i < length - 1)
+	{
+		if (f(tab[i], tab[i + 1]) > 0)
+		{
+			cs = 0;
+		}
+		if (f(tab[i], tab[i + 1]) < 0)
+		{
+			ds = 0;
+			i++;
+		}
+		return (cs || ds);
+	}
+}
+
+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	main(void)
+{
+	int tab[] = {1, 2, 3, 4, 5, 6, 9, 7};
+
+	if (ft_is_sort(tab, 8, &ft_putnbr == 1))
+	{
+		write(1, "Ok :3", 5);
+	}
+}