From 270e82f16fcded7b5e5ef7a312598719f58fcad1 Mon Sep 17 00:00:00 2001
From: Donald Linton <lintond@gmail.com>
Date: Thu, 23 Jan 2020 14:17:49 -0500
Subject: [PATCH] add is_enum to insure that bit shifts are not mistaken for io
 stream operators

---
 src/lib/TypeTraits.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/lib/TypeTraits.h b/src/lib/TypeTraits.h
index aaa26fe..ad44f67 100644
--- a/src/lib/TypeTraits.h
+++ b/src/lib/TypeTraits.h
@@ -106,6 +106,8 @@
     template < typename T, typename U > struct is_same : false_type{};
     template < typename T > struct is_same< T, T > : true_type{};
 
+    template<typename T> struct is_enum : public integral_constant<bool, __is_enum(T)>{};
+
     template< typename T >
         struct is_integer{
             enum{
@@ -232,6 +234,7 @@
         template<class B, class D>
             struct is_base_of<B,D,typename enable_if<
                 !is_array<D>::value &&
+                !is_enum<D>::value &&
                 !is_fundamental<D>::value &&
                 !is_pointer<D>::value>::type
             >{
@@ -245,7 +248,8 @@
         template<class B, class D>
             struct is_base_of<B,D,typename enable_if<
                 is_array<D>::value ||
-                is_fundamental<D>::value ||
+                is_enum<D>::value ||
+                is_fundamental<D>::value||
                 is_pointer<D>::value>::type
             >{
             static const bool value = 0;