[Boost-commit] svn:boost r57744 - sandbox/numeric_bindings/boost/numeric/bindings

Subject: [Boost-commit] svn:boost r57744 - sandbox/numeric_bindings/boost/numeric/bindings
From: rutger_at_[hidden]
Date: 2009-11-18 07:54:42

Author: rutger
Date: 2009-11-18 07:54:40 EST (Wed, 18 Nov 2009)
New Revision: 57744
URL: http://svn.boost.org/trac/boost/changeset/57744

Log:
Added matrix_num_rows, matrix_num_columns and transpose wrapper

Added:
   sandbox/numeric_bindings/boost/numeric/bindings/matrix_num_columns.hpp   (contents, props changed)
   sandbox/numeric_bindings/boost/numeric/bindings/matrix_num_rows.hpp   (contents, props changed)
   sandbox/numeric_bindings/boost/numeric/bindings/transpose.hpp   (contents, props changed)

Added: sandbox/numeric_bindings/boost/numeric/bindings/matrix_num_columns.hpp
==============================================================================
--- (empty file)
+++ sandbox/numeric_bindings/boost/numeric/bindings/matrix_num_columns.hpp	2009-11-18 07:54:40 EST (Wed, 18 Nov 2009)
@@ -0,0 +1,28 @@
+//
+// Copyright (c) 2009 Rutger ter Borg
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef BOOST_NUMERIC_BINDINGS_MATRIX_NUM_COLUMNS_HPP
+#define BOOST_NUMERIC_BINDINGS_MATRIX_NUM_COLUMNS_HPP
+
+#include <boost/numeric/bindings/tensor_size.hpp>
+
+namespace boost {
+namespace numeric {
+namespace bindings {
+
+template< typename T >
+inline std::ptrdiff_t matrix_num_columns( T const& t ) {
+    return tensor_size2( t );
+}
+
+} // bindings
+} // numeric
+} // boost
+
+#endif
+

Added: sandbox/numeric_bindings/boost/numeric/bindings/matrix_num_rows.hpp
==============================================================================
--- (empty file)
+++ sandbox/numeric_bindings/boost/numeric/bindings/matrix_num_rows.hpp	2009-11-18 07:54:40 EST (Wed, 18 Nov 2009)
@@ -0,0 +1,28 @@
+//
+// Copyright (c) 2009 Rutger ter Borg
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef BOOST_NUMERIC_BINDINGS_MATRIX_NUM_ROWS_HPP
+#define BOOST_NUMERIC_BINDINGS_MATRIX_NUM_ROWS_HPP
+
+#include <boost/numeric/bindings/tensor_size.hpp>
+
+namespace boost {
+namespace numeric {
+namespace bindings {
+
+template< typename T >
+inline std::ptrdiff_t matrix_num_rows( T const& t ) {
+    return tensor_size1( t );
+}
+
+} // bindings
+} // numeric
+} // boost
+
+#endif
+

Added: sandbox/numeric_bindings/boost/numeric/bindings/transpose.hpp
==============================================================================
--- (empty file)
+++ sandbox/numeric_bindings/boost/numeric/bindings/transpose.hpp	2009-11-18 07:54:40 EST (Wed, 18 Nov 2009)
@@ -0,0 +1,73 @@
+//
+// Copyright (c) 2009 Rutger ter Borg
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef BOOST_NUMERIC_BINDINGS_TRANSPOSE_HPP
+#define BOOST_NUMERIC_BINDINGS_TRANSPOSE_HPP
+
+#include <boost/numeric/bindings/detail/adaptor.hpp>
+#include <boost/mpl/max.hpp>
+
+namespace boost {
+namespace numeric {
+namespace bindings {
+
+namespace detail {
+
+template< typename T >
+struct transpose_wrapper {
+
+    typedef T type;
+
+    transpose_wrapper( T& t ):
+        m_ref( t ) {}
+
+    T& get() {
+        return m_ref;
+    }
+
+    T const& get() const {
+        return m_ref;
+    }
+
+private:
+    T& m_ref;
+};
+
+template< typename T, typename Id, typename Enable >
+struct adaptor< transpose_wrapper<T>, Id, Enable > {
+
+    typedef typename adaptor_access<T>::value_type value_type;
+    typedef typename boost::mpl::max<
+            boost::mpl::int_<2>, 
+            typename adaptor_access<T>::tensor_rank
+        >::type tensor_rank;
+
+    static std::ptrdiff_t size1( Id const& t ) {
+        return tensor_size2( t.get() );
+    }
+
+    static std::ptrdiff_t size2( Id const& t ) {
+        return tensor_size1( t.get() );
+    }
+
+};
+
+} // namespace detail
+
+
+template< typename T >
+detail::transpose_wrapper<T> trans( T& underlying ) {
+    return detail::transpose_wrapper<T>( underlying );
+}
+
+} // bindings
+} // numeric
+} // boost
+
+#endif
+