[Boost-commit] svn:boost r75468 - sandbox/variadic_templates/sandbox/stepper/boost/array_stepper

Subject: [Boost-commit] svn:boost r75468 - sandbox/variadic_templates/sandbox/stepper/boost/array_stepper
From: cppljevans_at_[hidden]
Date: 2011-11-12 14:52:46

Author: cppljevans
Date: 2011-11-12 14:52:46 EST (Sat, 12 Nov 2011)
New Revision: 75468
URL: http://svn.boost.org/trac/boost/changeset/75468

Log:
Add missing file

Added:
   sandbox/variadic_templates/sandbox/stepper/boost/array_stepper/array_store.hpp   (contents, props changed)

Added: sandbox/variadic_templates/sandbox/stepper/boost/array_stepper/array_store.hpp
==============================================================================
--- (empty file)
+++ sandbox/variadic_templates/sandbox/stepper/boost/array_stepper/array_store.hpp	2011-11-12 14:52:46 EST (Sat, 12 Nov 2011)
@@ -0,0 +1,106 @@
+#ifndef BOOST_ARRAY_STEPPER_ARRAY_STORE_HPP_INCLUDED
+#define BOOST_ARRAY_STEPPER_ARRAY_STORE_HPP_INCLUDED
+#include <boost/array_stepper/length_strides_offset.hpp>
+
+namespace boost
+{
+namespace array_stepper
+{
+  template
+  < typename T
+  , typename Domain=length_strides_offset<>
+  >
+  struct  
+array_store
+/**@brief
+ *  Multidimensional array whose
+ *  'shape' is defined at runtime.
+ *  'Shape' means lengths of 
+ *  (or upper bounds on indices to) 
+ *  the array's axes.
+ */
+: Domain
+{
+        typedef
+      Domain
+    domain_t
+    ;
+        typedef
+      typename domain_t::indices_t
+    indices_t
+    ;
+        typedef
+      std::vector<T>
+    data_t
+    ;
+ private:    
+      data_t
+    my_data
+    /**@brief
+     *  data in the array.
+     */
+    ;
+ public:    
+      data_t&
+    data()
+    {
+        return my_data;
+    }
+      data_t const&
+    data()const
+    {
+        return my_data;
+    }
+      template
+      < typename Lengths
+      >
+    array_store
+      ( Lengths const& a_lengths
+      , typename domain_t::permute_t const& a_permute
+      )
+    : domain_t
+      ( a_lengths.size()
+      )
+    , my_data
+      ( this->domain_t::init_strides( a_lengths, a_permute)
+      )
+    {
+    }
+    
+      T&
+    at_indices_seq( indices_t const& a_indices_seq)
+    {
+        return my_data[offset_at_indices_seq(a_indices_seq)];
+    }
+      T const&
+    at_indices_seq( indices_t const& a_indices_seq)const
+    {
+        return my_data[offset_at_indices_seq(a_indices_seq)];
+    }
+    
+  #if !defined(__clang__) && defined(CXX0X_VARIADIC_TEMPLATES)
+      template
+      < typename... Index
+      >
+      T&
+    operator()( Index... a_index)
+    {
+        indices_t const indices({a_index...});
+        return at_indices_seq(indices);
+    }        
+      template
+      < typename... Index
+      >
+      T const&
+    operator()( Index... a_index)const
+    {
+        indices_t const indices({a_index...});
+        return at_indices_seq(indices);
+    }
+  #endif
+
+};
+
+}//exit array_stepper namespace
+}//exit boost namespace
+#endif