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// 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
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