From e13071dd13233b5d07e725453617c40421cf7501 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Mon, 5 Sep 2016 15:50:41 +0200
Subject: Workaround a weird msvc 2012 compilation error.

---
 Eigen/src/Core/util/Meta.h | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

(limited to 'Eigen/src/Core/util/Meta.h')

diff --git a/Eigen/src/Core/util/Meta.h b/Eigen/src/Core/util/Meta.h
index bbef83ea8..d4460bb77 100755
--- a/Eigen/src/Core/util/Meta.h
+++ b/Eigen/src/Core/util/Meta.h
@@ -383,7 +383,7 @@ struct has_ReturnType
 
 template<typename T> const T& return_ref();
 
-template <typename T>
+template <typename T, typename IndexType=Index>
 struct has_nullary_operator
 {
   template <typename C> static meta_yes testFunctor(C const *,typename enable_if<(sizeof(return_ref<C>().operator()())>0)>::type * = 0);
@@ -392,19 +392,19 @@ struct has_nullary_operator
   enum { value = sizeof(testFunctor(static_cast<T*>(0))) == sizeof(meta_yes) };
 };
 
-template <typename T>
+template <typename T, typename IndexType=Index>
 struct has_unary_operator
 {
-  template <typename C> static meta_yes testFunctor(C const *,typename enable_if<(sizeof(return_ref<C>().operator()(Index(0)))>0)>::type * = 0);
+  template <typename C> static meta_yes testFunctor(C const *,typename enable_if<(sizeof(return_ref<C>().operator()(IndexType(0)))>0)>::type * = 0);
   static meta_no testFunctor(...);
 
   enum { value = sizeof(testFunctor(static_cast<T*>(0))) == sizeof(meta_yes) };
 };
 
-template <typename T>
+template <typename T, typename IndexType=Index>
 struct has_binary_operator
 {
-  template <typename C> static meta_yes testFunctor(C const *,typename enable_if<(sizeof(return_ref<C>().operator()(Index(0),Index(0)))>0)>::type * = 0);
+  template <typename C> static meta_yes testFunctor(C const *,typename enable_if<(sizeof(return_ref<C>().operator()(IndexType(0),IndexType(0)))>0)>::type * = 0);
   static meta_no testFunctor(...);
 
   enum { value = sizeof(testFunctor(static_cast<T*>(0))) == sizeof(meta_yes) };
-- 
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