From e707cd8754488d140a66a06c4f760e2a20e29c0d Mon Sep 17 00:00:00 2001
From: Olivier Parcollet <olivier.parcollet@cea.fr>
Date: Tue, 30 Jul 2013 15:53:05 +0200
Subject: [PATCH] correction tuple_tools for gcc 4.6

---
 triqs/utility/tuple_tools.hpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/triqs/utility/tuple_tools.hpp b/triqs/utility/tuple_tools.hpp
index ff23d845..2bc12052 100644
--- a/triqs/utility/tuple_tools.hpp
+++ b/triqs/utility/tuple_tools.hpp
@@ -177,7 +177,7 @@ namespace triqs { namespace tuple {
  };
 
  template<typename F, typename T1, typename T2>
-  auto apply_on_zip (F && f,T1 && t1, T2 && t2) DECL_AND_RETURN( apply_on_zip_impl<std::tuple_size<typename std::remove_reference<T1>::type>::value-1>()(std::forward<F>(f),std::forward<T1>(t1),std::forward<T2>(t2)));
+  auto apply_on_zip (F && f,T1 && t1, T2 && t2) DECL_AND_RETURN( apply_on_zip_impl<std::tuple_size<typename std::remove_const<typename std::remove_reference<T1>::type>::type>::value-1>()(std::forward<F>(f),std::forward<T1>(t1),std::forward<T2>(t2)));
 
  /**
   * apply_on_zip(f, t1,t2,t3)
@@ -198,7 +198,7 @@ namespace triqs { namespace tuple {
  };
 
  template<typename F, typename T1, typename T2, typename T3>
-  auto apply_on_zip (F && f,T1 && t1, T2 && t2, T3 && t3) DECL_AND_RETURN( apply_on_zip3_impl<std::tuple_size<typename std::remove_reference<T1>::type>::value-1>()(std::forward<F>(f),std::forward<T1>(t1),std::forward<T2>(t2),std::forward<T3>(t3)));
+  auto apply_on_zip (F && f,T1 && t1, T2 && t2, T3 && t3) DECL_AND_RETURN( apply_on_zip3_impl<std::tuple_size<typename std::remove_const<typename std::remove_reference<T1>::type>::type>::value-1>()(std::forward<F>(f),std::forward<T1>(t1),std::forward<T2>(t2),std::forward<T3>(t3)));
 
  /**
   * call_on_zip(f, t1,t2,t3)