Update of /cvsroot/boost/boost/boost/fusion/support
In directory sc8-pr-cvs3.sourceforge.net:/tmp/cvs-serv4556
Modified Files:
tag_of.hpp
Log Message:
don't use forward declarations of partial specializations.
Index: tag_of.hpp
===================================================================
RCS file: /cvsroot/boost/boost/boost/fusion/support/tag_of.hpp,v
retrieving revision 1.7
retrieving revision 1.8
diff -u -d -r1.7 -r1.8
--- tag_of.hpp 22 Mar 2007 19:21:29 -0000 1.7
+++ tag_of.hpp 2 Jul 2007 06:52:31 -0000 1.8
@@ -13,6 +13,7 @@
#include <boost/mpl/has_xxx.hpp>
#include <boost/utility/enable_if.hpp>
#include <boost/mpl/identity.hpp>
+#include <boost/mpl/assert.hpp>
#include <boost/mpl/bool.hpp>
#include <boost/mpl/if.hpp>
#include <utility>
@@ -45,6 +46,39 @@
namespace detail
{
BOOST_MPL_HAS_XXX_TRAIT_DEF(fusion_tag)
+
+ template<typename Sequence>
+ struct is_specialized
+ : mpl::false_
+ {};
+
+ template <
+ class T0, class T1, class T2, class T3, class T4,
+ class T5, class T6, class T7, class T8, class T9
+ >
+ struct is_specialized<tuples::tuple<T0, T1, T2, T3, T4, T5, T6, T7,
T8, T9> >
+ : mpl::true_
+ {};
+
+ template <class Head, class Tail>
+ struct is_specialized<tuples::cons<Head, Tail> >
+ : mpl::true_
+ {};
+
+ template <>
+ struct is_specialized<tuples::null_type>
+ : mpl::true_
+ {};
+
+ template <typename T, std::size_t N>
+ struct is_specialized<boost::array<T, N> >
+ : mpl::true_
+ {};
+
+ template<typename T1, typename T2>
+ struct is_specialized<std::pair<T1, T2> >
+ : mpl::true_
+ {};
}
namespace traits
@@ -54,31 +88,15 @@
: mpl::if_< detail::is_mpl_sequence<Sequence>,
mpl::identity<mpl_sequence_tag>,
mpl::identity<non_fusion_tag> >::type
- { };
+ {
+ BOOST_MPL_ASSERT_NOT((detail::is_specialized<Sequence>));
+ };
template <typename Sequence>
struct tag_of<Sequence, typename
boost::enable_if<detail::has_fusion_tag<Sequence> >::type>
{
typedef typename Sequence::fusion_tag type;
};
-
- template <
- class T0, class T1, class T2, class T3, class T4,
- class T5, class T6, class T7, class T8, class T9
- >
- struct tag_of<tuples::tuple<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9> >;
-
- template <class Head, class Tail>
- struct tag_of<tuples::cons<Head, Tail> >;
-
- template <>
- struct tag_of<tuples::null_type>;
-
- template <typename T, std::size_t N>
- struct tag_of<boost::array<T, N> >;
-
- template<typename T1, typename T2>
- struct tag_of<std::pair<T1, T2> >;
}
namespace detail
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