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70 lines
1.6 KiB
70 lines
1.6 KiB
// Copyright 2002 The Trustees of Indiana University. |
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// Use, modification and distribution is subject to the Boost Software |
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// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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// Boost.MultiArray Library |
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// Authors: Ronald Garcia |
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// Jeremy Siek |
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// Andrew Lumsdaine |
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// See http://www.boost.org/libs/multi_array for documentation. |
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#ifndef RANGE_LIST_RG072501_HPP |
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#define RANGE_LIST_RG072501_HPP |
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// |
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// range_list.hpp - helper to build boost::arrays for *_set types |
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// |
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#include "boost/array.hpp" |
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namespace boost { |
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namespace detail { |
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namespace multi_array { |
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///////////////////////////////////////////////////////////////////////// |
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// choose range list begins |
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// |
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struct choose_range_list_n { |
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template <typename T, std::size_t NumRanges> |
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struct bind { |
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typedef boost::array<T,NumRanges> type; |
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}; |
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}; |
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struct choose_range_list_zero { |
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template <typename T, std::size_t NumRanges> |
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struct bind { |
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typedef boost::array<T,1> type; |
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}; |
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}; |
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template <std::size_t NumRanges> |
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struct range_list_gen_helper { |
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typedef choose_range_list_n choice; |
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}; |
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template <> |
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struct range_list_gen_helper<0> { |
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typedef choose_range_list_zero choice; |
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}; |
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template <typename T, std::size_t NumRanges> |
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struct range_list_generator { |
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private: |
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typedef typename range_list_gen_helper<NumRanges>::choice Choice; |
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public: |
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typedef typename Choice::template bind<T,NumRanges>::type type; |
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}; |
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// |
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// choose range list ends |
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///////////////////////////////////////////////////////////////////////// |
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} // namespace multi_array |
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} // namespace detail |
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} // namespace boost |
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#endif // RANGE_LIST_RG072501_HPP
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