From f50c77425dc4a9a8fd1a856e9f12c354c830169b Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Tue, 13 Jun 2017 14:18:32 +1000
Subject: [PATCH] maths: make almost_equal constexper for integers

---
 maths.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/maths.hpp b/maths.hpp
index 34632e5a..01309770 100644
--- a/maths.hpp
+++ b/maths.hpp
@@ -94,7 +94,7 @@ namespace util {
 
     //-----------------------------------------------------------------------------
     template <typename Ta, typename Tb>
-    inline
+    constexpr inline
     typename std::enable_if<
         !std::is_arithmetic<Ta>::value ||
         !std::is_arithmetic<Tb>::value,