[boost] [fusion] Patch for release daw-msvc71

From: David Walthall (walthall_at_[hidden])
Date: 2008-08-07 15:04:59

I have a patch that fixes an INTERNAL COMPILER ERROR on the release 
branch of fusion for daw-msvc71 (which did not show up for the other 
msvc 7.1 runner).

[If it matters, this is licensed under the Boost license.]

Basically, putting the return type as a typedef fixes the issue.  I 
realize that there are several other places in the file with similar 
typedefs, but this was the minimal change to get the two failing 
examples to compile.

C:\boost_testing\boost\boost\fusion\container\deque\detail>svn diff
Index: keyed_element.hpp
===================================================================
--- keyed_element.hpp   (revision 47983)
+++ keyed_element.hpp   (working copy)
@@ -40,6 +40,9 @@
          typedef Rest base;
          typedef fusion_sequence_tag tag;
          using Rest::get;
+    private:
+        typedef typename add_reference<Value>::type ValueRefType;
+    public:

          template<typename It>
          static keyed_element
@@ -64,7 +67,7 @@
              return value_;
          }

-        typename add_reference<Value>::type get(Key)
+        ValueRefType get(Key)
          {
              return value_;
          }