From 8794aec35a3764a70f72f8fb9bd9fe2ffabfa249 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Fri, 17 Apr 2015 03:12:08 +0200
Subject: [PATCH] fix a warning after C++11 transition (#898)

it is still questionable why GCC emits the warning
"enumeral and non enumeral constant in comparison"
since both arguments of the comparison are enum constants.


I've asked that question on stackoverflow....
http://stackoverflow.com/questions/29685367/reasoning-behind-enumeral-and-non-enumeral-type-in-conditional-expression
---
 src/lib/meta/typelist-util.hpp | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/src/lib/meta/typelist-util.hpp b/src/lib/meta/typelist-util.hpp
index 812aa2487..a574fdc43 100644
--- a/src/lib/meta/typelist-util.hpp
+++ b/src/lib/meta/typelist-util.hpp
@@ -79,15 +79,14 @@ namespace meta {
     template<>
     struct maxSize<NullType>
       {
-        enum{ value = 0 };
+        static constexpr int value = 0;
       };
     template<class TY, class TYPES>
     struct maxSize<Node<TY,TYPES> >
       {
-        enum{ thisval = sizeof(TY)
-            , nextval = maxSize<TYPES>::value
-            , value   = nextval > thisval?  nextval:thisval
-            };
+        static constexpr size_t thisval = sizeof(TY);
+        static constexpr size_t nextval = maxSize<TYPES>::value;
+        static constexpr size_t value   = nextval > thisval?  nextval:thisval;
       };
     
     
@@ -115,7 +114,7 @@ namespace meta {
     
     /** convenience shortcut: query function */
     template<typename TY, typename TYPES>
-    bool
+    constexpr bool
     isInList()
     {
       return IsInList<TY,TYPES>::value;