// 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