From c9b6b9a5ca082fe7c1b6f58d7713f785a9eb6a5c Mon Sep 17 00:00:00 2001
From: Martial Simon <msimon_fr@hotmail.com>
Date: Mon, 15 Sep 2025 01:08:27 +0200
Subject: add: graphs et rushs

---
 graphs/cpp/is_prime/is_prime.hxx | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 graphs/cpp/is_prime/is_prime.hxx

(limited to 'graphs/cpp/is_prime/is_prime.hxx')

diff --git a/graphs/cpp/is_prime/is_prime.hxx b/graphs/cpp/is_prime/is_prime.hxx
new file mode 100644
index 0000000..da2b94d
--- /dev/null
+++ b/graphs/cpp/is_prime/is_prime.hxx
@@ -0,0 +1,21 @@
+#pragma once
+
+#include "is_prime.hh"
+constexpr bool is_prime(unsigned n)
+{
+    if (n == 0 || n == 1)
+    {
+        return false;
+    }
+    else
+    {
+        for (unsigned i = 2; i <= n / 2; ++i)
+        {
+            if (n % i == 0)
+            {
+                return false;
+            }
+        }
+    }
+    return true;
+}
\ No newline at end of file
-- 
cgit v1.2.3