[Boost-commit] svn:boost r80931 - sandbox/numeric_bindings/boost/numeric/bindings

Subject: [Boost-commit] svn:boost r80931 - sandbox/numeric_bindings/boost/numeric/bindings
From: rutger_at_[hidden]
Date: 2012-10-10 08:15:43

Author: rutger
Date: 2012-10-10 08:15:41 EDT (Wed, 10 Oct 2012)
New Revision: 80931
URL: http://svn.boost.org/trac/boost/changeset/80931

Log:
Added experimental support for flipping bandwidth1/bandwidth2 to trans()

Text files modified: 
   sandbox/numeric_bindings/boost/numeric/bindings/trans.hpp |    23 +++++++++++++++++++++++                 
   1 files changed, 23 insertions(+), 0 deletions(-)

Modified: sandbox/numeric_bindings/boost/numeric/bindings/trans.hpp
==============================================================================
--- sandbox/numeric_bindings/boost/numeric/bindings/trans.hpp	(original)
+++ sandbox/numeric_bindings/boost/numeric/bindings/trans.hpp	2012-10-10 08:15:41 EDT (Wed, 10 Oct 2012)
@@ -18,8 +18,10 @@
 #include <boost/numeric/bindings/is_column_major.hpp>
 #include <boost/numeric/bindings/rank.hpp>
 #include <boost/numeric/bindings/size.hpp>
+#include <boost/numeric/bindings/bandwidth.hpp>
 #include <boost/numeric/bindings/tag.hpp>
 #include <boost/numeric/bindings/value_type.hpp>
+#include <boost/numeric/bindings/has_band_array.hpp>
 #include <boost/numeric/bindings/has_linear_array.hpp>
 #include <boost/ref.hpp>
 
@@ -75,6 +77,17 @@
             mpl::void_
         >::type,
 
+        // If T has a band array
+        // bandwidth1 <-> bandwidth2
+        typename mpl::if_< has_band_array< T >,
+            mpl::pair< tag::bandwidth_type<1>, typename result_of::bandwidth2< T >::type >,
+            mpl::void_
+        >::type,
+        typename mpl::if_< has_band_array< T >,
+            mpl::pair< tag::bandwidth_type<2>, typename result_of::bandwidth1< T >::type >,
+            mpl::void_
+        >::type,
+
         // If a data_side tag is present:
         // upper <-> lower
         typename mpl::if_<
@@ -120,6 +133,16 @@
         return bindings::stride1( id.get() );
     }
 
+    // Banded matrix transpose
+    // Flip bandwidth1/bandwidth2
+    static typename result_of::bandwidth2< T >::type bandwidth1( const Id& id ) {
+        return bindings::bandwidth2( id.get() );
+    }
+
+    static typename result_of::bandwidth1< T >::type bandwidth2( const Id& id ) {
+        return bindings::bandwidth1( id.get() );
+    }
+
 };
 
 } // namespace detail