[Boost-commit] svn:boost r52274 - trunk/boost/graph

Subject: [Boost-commit] svn:boost r52274 - trunk/boost/graph
From: jewillco_at_[hidden]
Date: 2009-04-08 20:48:56

Author: jewillco
Date: 2009-04-08 20:48:56 EDT (Wed, 08 Apr 2009)
New Revision: 52274
URL: http://svn.boost.org/trac/boost/changeset/52274

Log:
Added dot product
Text files modified: 
   trunk/boost/graph/topology.hpp |     7 +++++++                                 
   1 files changed, 7 insertions(+), 0 deletions(-)

Modified: trunk/boost/graph/topology.hpp
==============================================================================
--- trunk/boost/graph/topology.hpp	(original)
+++ trunk/boost/graph/topology.hpp	2009-04-08 20:48:56 EDT (Wed, 08 Apr 2009)
@@ -114,6 +114,13 @@
       return result;
     }
 
+    friend double dot(const point_difference& a, const point_difference& b) {
+      double result = 0;
+      for (std::size_t i = 0; i < Dims; ++i)
+        result += a[i] * b[i];
+      return result;
+    }
+
   private:
     double values[Dims];
   };