[Boost-commit] svn:boost r43134 - trunk/boost/xpressive/proto

From: eric_at_[hidden]
Date: 2008-02-06 17:57:57

Author: eric_niebler
Date: 2008-02-06 17:57:57 EST (Wed, 06 Feb 2008)
New Revision: 43134
URL: http://svn.boost.org/trac/boost/changeset/43134

Log:
add handy get() accessors on literal<> wrapper
Text files modified: 
   trunk/boost/xpressive/proto/literal.hpp |    14 ++++++++++++++                          
   1 files changed, 14 insertions(+), 0 deletions(-)

Modified: trunk/boost/xpressive/proto/literal.hpp
==============================================================================
--- trunk/boost/xpressive/proto/literal.hpp	(original)
+++ trunk/boost/xpressive/proto/literal.hpp	2008-02-06 17:57:57 EST (Wed, 06 Feb 2008)
@@ -40,6 +40,10 @@
             typedef extends<terminal_type, literal<T, Domain>, Domain> base_type;
 
         public:
+            typedef typename proto::result_of::arg<terminal_type>::type value_type;
+            typedef typename proto::result_of::arg<terminal_type>::reference reference;
+            typedef typename proto::result_of::arg<terminal_type>::const_reference const_reference;
+
             template<typename U>
             literal(U &u)
               : base_type(terminal_type::make(u))
@@ -56,6 +60,16 @@
             {}
 
             using base_type::operator =;
+
+            reference get()
+            {
+                return proto::arg(*this);
+            }
+
+            const_reference get() const
+            {
+                return proto::arg(*this);
+            }
         };
     }