/usr/include/CGAL/CC_safe_handle.h is in libcgal-dev 4.11-2build1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | // Copyright (c) 2012 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 Lesser 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) : Clement Jamin
#ifndef CGAL_CC_SAFE_HANDLE_H
#define CGAL_CC_SAFE_HANDLE_H
namespace CGAL {
// CC_safe_handle is a helper that store a CC handle and its erase
// counter value (value when the CC_safe_handle instance was created).
// The is_zombie() function allows to know if the pointee was erased since.
template <typename CC_iterator>
class CC_safe_handle
{
public:
CC_safe_handle(CC_iterator iterator)
: m_handle(iterator)
, m_erase_counter_value(iterator->erase_counter())
{
}
bool is_zombie() const
{
return m_handle->erase_counter() != m_erase_counter_value;
}
CC_iterator cc_iterator() const
{
return m_handle;
}
protected:
CC_iterator m_handle;
unsigned int m_erase_counter_value;
};
template <typename CC_iterator>
CC_safe_handle<CC_iterator> make_cc_safe_handle(CC_iterator iterator)
{
return CC_safe_handle<CC_iterator>(iterator);
}
} //namespace CGAL
#endif // CGAL_CC_SAFE_HANDLE_H
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