Added boost header

test/external/boost/multi_array/extent_gen.hpp

@@ -0,0 +1,75 @@
+// 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