[Boost-commit] svn:boost r80891 - sandbox/type_erasure/boost/type_erasure/detail

Subject: [Boost-commit] svn:boost r80891 - sandbox/type_erasure/boost/type_erasure/detail
From: steven_at_[hidden]
Date: 2012-10-06 15:10:44

Author: steven_watanabe
Date: 2012-10-06 15:10:43 EDT (Sat, 06 Oct 2012)
New Revision: 80891
URL: http://svn.boost.org/trac/boost/changeset/80891

Log:
Work around gcc 4.7 problem.
Text files modified: 
   sandbox/type_erasure/boost/type_erasure/detail/vtable.hpp |    14 ++++++++++++++                          
   1 files changed, 14 insertions(+), 0 deletions(-)

Modified: sandbox/type_erasure/boost/type_erasure/detail/vtable.hpp
==============================================================================
--- sandbox/type_erasure/boost/type_erasure/detail/vtable.hpp	(original)
+++ sandbox/type_erasure/boost/type_erasure/detail/vtable.hpp	2012-10-06 15:10:43 EDT (Sat, 06 Oct 2012)
@@ -143,6 +143,20 @@
     }
 };
 
+// Provide this specialization manually.
+// gcc 4.7.2 fails to instantiate the primary template.
+template<>
+struct vtable_storage<>
+{
+    vtable_storage() = default;
+
+    template<class Bindings, class Src>
+    void convert_from(const Src& src) {}
+
+    bool operator==(const vtable_storage& other) const
+    { return true; }
+};
+
 template<class... T>
 struct make_vtable_impl<stored_arg_pack<T...> >
 {