[Boost-commit] svn:boost r56301 - trunk/boost/property_map

Subject: [Boost-commit] svn:boost r56301 - trunk/boost/property_map
From: jewillco_at_[hidden]
Date: 2009-09-18 16:12:37

Author: jewillco
Date: 2009-09-18 16:12:36 EDT (Fri, 18 Sep 2009)
New Revision: 56301
URL: http://svn.boost.org/trac/boost/changeset/56301

Log:
Added missing function
Text files modified: 
   trunk/boost/property_map/property_map.hpp |    16 ++++++++++++++++                        
   1 files changed, 16 insertions(+), 0 deletions(-)

Modified: trunk/boost/property_map/property_map.hpp
==============================================================================
--- trunk/boost/property_map/property_map.hpp	(original)
+++ trunk/boost/property_map/property_map.hpp	2009-09-18 16:12:36 EDT (Fri, 18 Sep 2009)
@@ -581,6 +581,22 @@
     value_type c;
   };
 
+  // Convert a Readable property map into a function object
+  template <typename PropMap>
+  class property_map_function {
+    PropMap pm;
+    typedef typename property_traits<PropMap>::key_type param_type;
+    public:
+    explicit property_map_function(const PropMap& pm): pm(pm) {}
+    typedef typename property_traits<PropMap>::value_type result_type;
+    result_type operator()(const param_type& k) const {return get(pm, k);}
+  };
+
+  template <typename PropMap>
+  property_map_function<PropMap>
+  make_property_map_function(const PropMap& pm) {
+    return property_map_function<PropMap>(pm);
+  }
 
 } // namespace boost