Fusion: silenced a couple of MSVC warnings created during Spirit test runs

[SVN r57502]

include/boost/fusion/view/filter_view/filter_view.hpp

@@ -53,6 +53,10 @@ namespace boost { namespace fusion
         first_type first() const { return fusion::begin(seq); }
         last_type last() const { return fusion::end(seq); }
         typename mpl::if_<traits::is_view<Sequence>, Sequence, Sequence&>::type seq;
+
+    private:
+        // silence MSVC warning C4512: assignment operator could not be generated
+        filter_view& operator= (filter_view const&);
     };
 }}
 

include/boost/fusion/view/nview/nview_iterator.hpp

@@ -45,6 +45,10 @@ namespace boost { namespace fusion
           : seq(seq) {}
 
         Sequence& seq;
+
+    private:
+        // silence MSVC warning C4512: assignment operator could not be generated
+        nview_iterator& operator= (nview_iterator const&);
     };
 
 }}

include/boost/fusion/view/transform_view/transform_view.hpp

@@ -99,6 +99,10 @@ namespace boost { namespace fusion
         last_type last() const { return fusion::end(seq); }
         typename mpl::if_<traits::is_view<Sequence>, Sequence, Sequence&>::type seq;
         transform_type f;
+
+    private:
+        // silence MSVC warning C4512: assignment operator could not be generated
+        transform_view& operator= (transform_view const&);
     };
 }}
 

include/boost/fusion/view/transform_view/transform_view_iterator.hpp

@@ -39,6 +39,10 @@ namespace boost { namespace fusion
 
         first_type first;
         transform_type f;
+
+    private:
+        // silence MSVC warning C4512: assignment operator could not be generated
+        transform_view_iterator& operator= (transform_view_iterator const&);
     };
 
     // Binary Version
@@ -62,6 +66,10 @@ namespace boost { namespace fusion
         first1_type first1;
         first2_type first2;
         transform_type f;
+
+    private:
+        // silence MSVC warning C4512: assignment operator could not be generated
+        transform_view_iterator2& operator= (transform_view_iterator2 const&);
     };
 }}