Chris@16: // Copyright 2002 The Trustees of Indiana University.
Chris@16: 
Chris@16: // Use, modification and distribution is subject to the Boost Software 
Chris@16: // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: //  Boost.MultiArray Library
Chris@16: //  Authors: Ronald Garcia
Chris@16: //           Jeremy Siek
Chris@16: //           Andrew Lumsdaine
Chris@16: //  See http://www.boost.org/libs/multi_array for documentation.
Chris@16: 
Chris@16: #ifndef COPY_ARRAY_RG092101_HPP
Chris@16: #define COPY_ARRAY_RG092101_HPP
Chris@16: 
Chris@16: //
Chris@16: // copy_array.hpp - generic code for copying the contents of one
Chris@16: // Basic_MultiArray to another.  We assume that they are of the same
Chris@16: // shape
Chris@16: //
Chris@16: #include "boost/type.hpp"
Chris@16: #include "boost/assert.hpp"
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace detail {
Chris@16: namespace multi_array {
Chris@16: 
Chris@16: template <typename Element>
Chris@16: class copy_dispatch {
Chris@16: public:
Chris@16:   template <typename SourceIterator, typename DestIterator>
Chris@16:   static void copy_array (SourceIterator first, SourceIterator last,
Chris@16:                    DestIterator result) {
Chris@16:     while (first != last) {
Chris@16:       copy_array(*first++,*result++);
Chris@16:     }
Chris@16:   }
Chris@16: private:
Chris@16:   // Array2 has to be passed by VALUE here because subarray
Chris@16:   // pseudo-references are temporaries created by iterator::operator*()
Chris@16:   template <typename Array1, typename Array2>
Chris@16:   static void copy_array (const Array1& source, Array2 dest) {
Chris@16:     copy_array(source.begin(),source.end(),dest.begin());
Chris@16:   }
Chris@16: 
Chris@16:   static void copy_array (const Element& source, Element& dest) {
Chris@16:     dest = source;
Chris@16:   }
Chris@16: 
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: template <typename Array1, typename Array2>
Chris@16: void copy_array (Array1& source, Array2& dest) {
Chris@16:   BOOST_ASSERT(std::equal(source.shape(),source.shape()+source.num_dimensions(),
Chris@16:                           dest.shape()));
Chris@16:   // Dispatch to the proper function
Chris@16:   typedef typename Array1::element element_type;
Chris@16:   copy_dispatch<element_type>::
Chris@16:     copy_array(source.begin(),source.end(),dest.begin());
Chris@16: }
Chris@16: 
Chris@16: 
Chris@16: } // namespace multi_array
Chris@16: } // namespace detail
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #endif // COPY_ARRAY_RG092101_HPP