71 lines
1.7 KiB
Plaintext
71 lines
1.7 KiB
Plaintext
// 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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