2 files changed, 26 insertions, 0 deletions
diff --git a/graphs/cpp/is_prime/is_prime.hh b/graphs/cpp/is_prime/is_prime.hh
new file mode 100644
index 0000000..ae83249
--- /dev/null
+++ b/graphs/cpp/is_prime/is_prime.hh
@@ -0,0 +1,5 @@
+#pragma once
+
+constexpr bool is_prime(unsigned n);
+
+#include "is_prime.hxx"
+\ No newline at end of file
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