76 lines
1.9 KiB
C++
76 lines
1.9 KiB
C++
|
// 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_EXTENT_GEN_RG071801_HPP
|
||
|
|
#define BOOST_EXTENT_GEN_RG071801_HPP
|
||
|
|
|
||
|
|
#include "boost/multi_array/extent_range.hpp"
|
||
|
|
#include "boost/multi_array/range_list.hpp"
|
||
|
|
#include "boost/multi_array/types.hpp"
|
||
|
|
#include "boost/array.hpp"
|
||
|
|
#include <algorithm>
|
||
|
|
|
||
|
|
namespace boost {
|
||
|
|
namespace detail {
|
||
|
|
namespace multi_array {
|
||
|
|
|
||
|
|
|
||
|
|
template <std::size_t NumRanges>
|
||
|
|
class extent_gen {
|
||
|
|
public:
|
||
|
|
typedef boost::detail::multi_array::index index;
|
||
|
|
typedef boost::detail::multi_array::size_type size_type;
|
||
|
|
typedef extent_range<index,size_type> range;
|
||
|
|
private:
|
||
|
|
typedef typename range_list_generator<range,NumRanges>::type range_list;
|
||
|
|
public:
|
||
|
|
template <std::size_t Ranges>
|
||
|
|
struct gen_type {
|
||
|
|
typedef extent_gen<Ranges> type;
|
||
|
|
};
|
||
|
|
|
||
|
|
range_list ranges_;
|
||
|
|
|
||
|
|
extent_gen() { }
|
||
|
|
|
||
|
|
// Used by operator[] to expand extent_gens
|
||
|
|
extent_gen(const extent_gen<NumRanges-1>& rhs,
|
||
|
|
const range& a_range)
|
||
|
|
{
|
||
|
|
std::copy(rhs.ranges_.begin(),rhs.ranges_.end(),ranges_.begin());
|
||
|
|
*ranges_.rbegin() = a_range;
|
||
|
|
}
|
||
|
|
|
||
|
|
extent_gen<NumRanges+1>
|
||
|
|
operator[](const range& a_range)
|
||
|
|
{
|
||
|
|
return extent_gen<NumRanges+1>(*this,a_range);
|
||
|
|
}
|
||
|
|
|
||
|
|
extent_gen<NumRanges+1>
|
||
|
|
operator[](index idx)
|
||
|
|
{
|
||
|
|
return extent_gen<NumRanges+1>(*this,range(0,idx));
|
||
|
|
}
|
||
|
|
|
||
|
|
static extent_gen<0> extents() {
|
||
|
|
return extent_gen<0>();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace multi_array
|
||
|
|
} // namespace detail
|
||
|
|
} // namespace boost
|
||
|
|
|
||
|
|
|
||
|
|
#endif // BOOST_EXTENT_GEN_RG071801_HPP
|