From b9f739324a59e88e636174f70f25669f7ae49ed2 Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Thu, 28 Mar 2019 14:27:02 +1100
Subject: [PATCH] maths: add pow2 convenience function

---
 maths.hpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/maths.hpp b/maths.hpp
index 83ef32d1..452f35c0 100644
--- a/maths.hpp
+++ b/maths.hpp
@@ -192,6 +192,13 @@ namespace cruft {
     }
 
 
+    //-------------------------------------------------------------------------
+    template <typename ValueT>
+    constexpr auto
+    pow2 [[gnu::const]] (ValueT const &val)
+    { return val * val; }
+
+
     //-------------------------------------------------------------------------
     template <typename T>
     constexpr