Squashed 'third_party/boostorg/multi_array/' content from commit abcb283

Change-Id: I4b93f75f0b15b00216d918bd6db5fc4fcb9c4cc2
git-subtree-dir: third_party/boostorg/multi_array
git-subtree-split: abcb2839d56669d1b5bb8a240ec644f47c66beb2
diff --git a/include/boost/multi_array/extent_range.hpp b/include/boost/multi_array/extent_range.hpp
new file mode 100644
index 0000000..d7a2eaf
--- /dev/null
+++ b/include/boost/multi_array/extent_range.hpp
@@ -0,0 +1,49 @@
+// 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_RANGE_RG071801_HPP
+#define BOOST_EXTENT_RANGE_RG071801_HPP
+
+#include <utility>
+
+namespace boost {
+namespace detail {
+namespace multi_array {
+
+template <typename Extent, typename SizeType>
+class extent_range : private std::pair<Extent,Extent> {
+  typedef std::pair<Extent,Extent> super_type;
+public:
+  typedef Extent index;
+  typedef SizeType size_type;
+
+  extent_range(index start, index finish) :
+    super_type(start,finish) { }
+
+  extent_range(index finish) :
+    super_type(0,finish) { }
+
+  extent_range() : super_type(0,0) { }
+
+  index start() const { return super_type::first; }
+
+  index finish() const { return super_type::second; }
+
+  size_type size() const { return super_type::second - super_type::first; }
+};
+
+} // namespace multi_array
+} // namespace detail 
+} // namespace boost
+
+
+#endif // BOOST_EXTENT_RANGE_RG071801_HPP