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