Chris@16: // Copyright 2002 The Trustees of Indiana University.
Chris@16: 
Chris@16: // Use, modification and distribution is subject to the Boost Software 
Chris@16: // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: //  Boost.MultiArray Library
Chris@16: //  Authors: Ronald Garcia
Chris@16: //           Jeremy Siek
Chris@16: //           Andrew Lumsdaine
Chris@16: //  See http://www.boost.org/libs/multi_array for documentation.
Chris@16: 
Chris@16: #ifndef RANGE_LIST_RG072501_HPP
Chris@16: #define RANGE_LIST_RG072501_HPP
Chris@16: //
Chris@16: // range_list.hpp - helper to build boost::arrays for *_set types
Chris@16: //
Chris@16: 
Chris@16: #include "boost/array.hpp"
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace detail {
Chris@16: namespace multi_array {
Chris@16: 
Chris@16: /////////////////////////////////////////////////////////////////////////
Chris@16: // choose range list begins
Chris@16: //
Chris@16: 
Chris@16: struct choose_range_list_n {
Chris@16:   template <typename T, std::size_t NumRanges>
Chris@16:   struct bind {
Chris@16:     typedef boost::array<T,NumRanges> type;
Chris@16:   };
Chris@16: };
Chris@16: 
Chris@16: struct choose_range_list_zero {
Chris@16:   template <typename T, std::size_t NumRanges>
Chris@16:   struct bind {
Chris@16:     typedef boost::array<T,1> type;
Chris@16:   };
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: template <std::size_t NumRanges>
Chris@16: struct range_list_gen_helper {
Chris@16:   typedef choose_range_list_n choice;
Chris@16: };
Chris@16: 
Chris@16: template <>
Chris@16: struct range_list_gen_helper<0> {
Chris@16:   typedef choose_range_list_zero choice;
Chris@16: };
Chris@16: 
Chris@16: template <typename T, std::size_t NumRanges>
Chris@16: struct range_list_generator {
Chris@16: private:
Chris@16:   typedef typename range_list_gen_helper<NumRanges>::choice Choice;
Chris@16: public:
Chris@16:   typedef typename Choice::template bind<T,NumRanges>::type type;
Chris@16: };
Chris@16: 
Chris@16: //
Chris@16: // choose range list ends
Chris@16: /////////////////////////////////////////////////////////////////////////
Chris@16: 
Chris@16: } // namespace multi_array
Chris@16: } // namespace detail
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #endif // RANGE_LIST_RG072501_HPP