mirror of https://github.com/CGAL/cgal
112 lines
2.7 KiB
C++
112 lines
2.7 KiB
C++
// Copyright (c) 2009-2014 INRIA Sophia-Antipolis (France).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org).
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//
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// $URL$
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// $Id$
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// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
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//
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// Author(s) : Samuel Hornus
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#ifndef CGAL_INTERNAL_STATIC_OR_DYNAMIC_ARRAY_H
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#define CGAL_INTERNAL_STATIC_OR_DYNAMIC_ARRAY_H
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#include <CGAL/license/Triangulation.h>
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#include <CGAL/Compact_container.h>
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#include <CGAL/Dimension.h>
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#include <CGAL/array.h>
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#include <vector>
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namespace CGAL {
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namespace internal {
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// Utility for adding one to an Dimension_tag:
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template<typename D>
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struct Dimen_plus_one;
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template<>
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struct Dimen_plus_one<Dynamic_dimension_tag>
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{
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typedef Dynamic_dimension_tag type;
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};
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template<int D>
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struct Dimen_plus_one<Dimension_tag<D> >
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{
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typedef Dimension_tag<D+1> type;
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};
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// A SMALL CONTAINER UTILITY FOR DYNAMIC/STATIC MEMORY MANAGEMENT
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// stores an array of static or dynamic size, depending on template parameter <B>.
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template< typename Containee, typename D, bool WithCompactContainerHelper = false>
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struct S_or_D_array; // S = static, D = dynamic
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// The case of static size:
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template< typename Containee, int D, bool WithCompactContainerHelper >
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struct S_or_D_array< Containee, Dimension_tag< D >, WithCompactContainerHelper >
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: public std::array<Containee, D>
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{
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typedef std::array<Containee, D> Base;
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S_or_D_array(const int)
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: Base()
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{}
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S_or_D_array(const int, const Containee & c)
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: Base()
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{
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assign(c);
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}
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void* for_compact_container() const
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{
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return (*this)[0].for_compact_container();
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}
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void for_compact_container(void *p)
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{
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(*this)[0].for_compact_container(p);
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}
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};
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// The case of dynamic size
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template< typename Containee >
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struct S_or_D_array< Containee, Dynamic_dimension_tag, false >
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: public std::vector<Containee>
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{
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typedef std::vector<Containee> Base;
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// TODO: maybe we should use some "small-vector-optimized" class.
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S_or_D_array(const int d)
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: Base(d)
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{}
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S_or_D_array(const int d, const Containee & c)
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: Base(d, c)
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{}
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};
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// The case of dynamic size with for_compact_container
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template< typename Containee >
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struct S_or_D_array< Containee, Dynamic_dimension_tag, true >
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: public std::vector<Containee>
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{
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typedef std::vector<Containee> Base;
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S_or_D_array(const int d)
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: Base(d), fcc_(nullptr)
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{}
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S_or_D_array(const int d, const Containee & c)
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: Base(d, c), fcc_(nullptr)
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{}
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void* fcc_;
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void* for_compact_container() const { return fcc_; }
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void for_compact_container(void* p) { fcc_ = p; }
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};
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} // end of namespace internal
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} // end of namespace CGAL
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#endif // CGAL_INTERNAL_STATIC_OR_DYNAMIC_ARRAY_H
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