| // 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 BOOST_INDEX_GEN_RG071801_HPP |
| #define BOOST_INDEX_GEN_RG071801_HPP |
| |
| #include "boost/array.hpp" |
| #include "boost/multi_array/index_range.hpp" |
| #include "boost/multi_array/range_list.hpp" |
| #include "boost/multi_array/types.hpp" |
| #include <algorithm> |
| #include <cstddef> |
| |
| namespace boost { |
| namespace detail { |
| namespace multi_array { |
| |
| |
| template <int NumRanges, int NumDims> |
| struct index_gen { |
| private: |
| typedef ::boost::detail::multi_array::index index; |
| typedef ::boost::detail::multi_array::size_type size_type; |
| typedef index_range<index,size_type> range; |
| public: |
| template <int Dims, int Ranges> |
| struct gen_type { |
| typedef index_gen<Ranges,Dims> type; |
| }; |
| |
| typedef typename range_list_generator<range,NumRanges>::type range_list; |
| range_list ranges_; |
| |
| index_gen() { } |
| |
| template <int ND> |
| explicit index_gen(const index_gen<NumRanges-1,ND>& rhs, |
| const range& r) |
| { |
| std::copy(rhs.ranges_.begin(),rhs.ranges_.end(),ranges_.begin()); |
| *ranges_.rbegin() = r; |
| } |
| |
| index_gen<NumRanges+1,NumDims+1> |
| operator[](const range& r) const |
| { |
| index_gen<NumRanges+1,NumDims+1> tmp; |
| std::copy(ranges_.begin(),ranges_.end(),tmp.ranges_.begin()); |
| *tmp.ranges_.rbegin() = r; |
| return tmp; |
| } |
| |
| index_gen<NumRanges+1,NumDims> |
| operator[](index idx) const |
| { |
| index_gen<NumRanges+1,NumDims> tmp; |
| std::copy(ranges_.begin(),ranges_.end(),tmp.ranges_.begin()); |
| *tmp.ranges_.rbegin() = range(idx); |
| return tmp; |
| } |
| |
| static index_gen<0,0> indices() { |
| return index_gen<0,0>(); |
| } |
| }; |
| |
| } // namespace multi_array |
| } // namespace detail |
| } // namespace boost |
| |
| |
| #endif // BOOST_INDEX_GEN_RG071801_HPP |