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+// Copyright (c) 2009-2014 INRIA Sophia-Antipolis (France).
+// All rights reserved.
+//
+// This file is part of CGAL (www.cgal.org).
+// You can redistribute it and/or modify it under the terms of the GNU
+// General Public License as published by the Free Software Foundation,
+// either version 3 of the License, or (at your option) any later version.
+//
+// Licensees holding a valid commercial license may use this file in
+// accordance with the commercial license agreement provided with the software.
+//
+// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+//
+// $URL$
+// $Id$
+//
+// Author(s) : Samuel Hornus
+
+#ifndef CGAL_INTERNAL_STATIC_OR_DYNAMIC_ARRAY_H
+#define CGAL_INTERNAL_STATIC_OR_DYNAMIC_ARRAY_H
+
+#include <CGAL/Compact_container.h>
+#include <CGAL/Dimension.h>
+#include <CGAL/array.h>
+#include <vector>
+
+namespace CGAL {
+
+namespace internal {
+
+// Utility for adding one to an Dimension_tag:
+
+template<typename D>
+struct Dimen_plus_one;
+
+template<>
+struct Dimen_plus_one<Dynamic_dimension_tag>
+{
+ typedef Dynamic_dimension_tag type;
+};
+
+template<int D>
+struct Dimen_plus_one<Dimension_tag<D> >
+{
+ typedef Dimension_tag<D+1> type;
+};
+
+// A SMALL CONTAINER UTILITY FOR DYNAMIC/STATIC MEMORY MANAGEMENT
+
+// stores an array of static or dynamic size, depending on template parameter <B>.
+
+template< typename Containee, typename D, bool WithCompactContainerHelper = false>
+ struct S_or_D_array; // S = static, D = dynamic
+
+// The case of static size:
+template< typename Containee, int D, bool WithCompactContainerHelper >
+struct S_or_D_array< Containee, Dimension_tag< D >, WithCompactContainerHelper >
+: public array<Containee, D>
+{
+ typedef array<Containee, D> Base;
+ S_or_D_array(const int)
+ : Base()
+ {}
+ S_or_D_array(const int, const Containee & c)
+ : Base()
+ {
+ assign(c);
+ }
+ void* for_compact_container() const
+ {
+ return (*this)[0].for_compact_container();
+ }
+ void* & for_compact_container()
+ {
+ return (*this)[0].for_compact_container();
+ }
+};
+
+// The case of dynamic size
+template< typename Containee >
+struct S_or_D_array< Containee, Dynamic_dimension_tag, false >
+: public std::vector<Containee>
+{
+ typedef std::vector<Containee> Base;
+ // TODO: maybe we should use some "small-vector-optimized" class.
+ S_or_D_array(const int d)
+ : Base(d)
+ {}
+ S_or_D_array(const int d, const Containee & c)
+ : Base(d, c)
+ {}
+};
+
+// The case of dynamic size with for_compact_container
+template< typename Containee >
+struct S_or_D_array< Containee, Dynamic_dimension_tag, true >
+: public std::vector<Containee>
+{
+ typedef std::vector<Containee> Base;
+ S_or_D_array(const int d)
+ : Base(d), fcc_(NULL)
+ {}
+ S_or_D_array(const int d, const Containee & c)
+ : Base(d, c), fcc_(NULL)
+ {}
+ void* fcc_;
+ void* for_compact_container() const { return fcc_; }
+ void* & for_compact_container() { return fcc_; }
+};
+
+} // end of namespace internal
+
+} // end of namespace CGAL
+
+#endif // CGAL_INTERNAL_STATIC_OR_DYNAMIC_ARRAY_H