mirror of https://github.com/CGAL/cgal
134 lines
3.8 KiB
C++
134 lines
3.8 KiB
C++
// Copyright (c) 1997-2002 Utrecht University (The Netherlands),
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// ETH Zurich (Switzerland), Freie Universitaet Berlin (Germany),
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// INRIA Sophia-Antipolis (France), Martin-Luther-University Halle-Wittenberg
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// (Germany), Max-Planck-Institute Saarbruecken (Germany), RISC Linz (Austria),
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// and Tel-Aviv University (Israel). All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; version 2.1 of the License.
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// See the file LICENSE.LGPL distributed with CGAL.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $Source$
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// $Revision$ $Date$
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// $Name$
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//
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// Author(s) : Michael Hoffmann (hoffmann@inf.ethz.ch)
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#ifndef CGAL_SUN_FIXES_H
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#define CGAL_SUN_FIXES_H 1
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//----------------------------------------------------------------------//
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// if member templates for stdlib are not enabled //
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//----------------------------------------------------------------------//
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/*
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For reasons of binary backward compatibility, Sun CC does not enable
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member templates of the STL classes.
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An #undef creates runtime errors for some packages, so it is not a
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viable solution. Instead, we have to offer workarounds in CGAL
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code, whereever we use this feature.
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*/
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#include <stdcomp.h>
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#if defined(RWSTD_NO_MEMBER_TEMPLATES) || defined(_RWSTD_NO_MEMBER_TEMPLATES)
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#define CGAL_CFG_RWSTD_NO_MEMBER_TEMPLATES
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#endif
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//----------------------------------------------------------------------//
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// fake iterator_traits //
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//----------------------------------------------------------------------//
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#include <iterator>
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namespace std {
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template <class Iterator> struct iterator_traits
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{
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typedef typename Iterator::value_type value_type;
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typedef typename Iterator::difference_type difference_type;
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typedef typename Iterator::pointer pointer;
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typedef typename Iterator::reference reference;
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typedef typename Iterator::iterator_category iterator_category;
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};
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template <class T> struct iterator_traits<T*>
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{
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typedef T value_type;
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typedef ptrdiff_t difference_type;
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typedef T* pointer;
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typedef T& reference;
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typedef random_access_iterator_tag iterator_category;
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};
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template <class T> struct iterator_traits<const T*>
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{
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typedef T value_type;
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typedef ptrdiff_t difference_type;
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typedef const T* pointer;
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typedef const T& reference;
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typedef random_access_iterator_tag iterator_category;
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};
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template <class ForwardIterator>
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inline ptrdiff_t
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distance (ForwardIterator first, ForwardIterator last)
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{
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ptrdiff_t n = 0;
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__distance(first, last, n,
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iterator_traits<ForwardIterator>::iterator_category());
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return n;
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}
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} // namespace std
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namespace CGAL {
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template < class T >
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inline typename T::value_type*
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__value_type (const T&)
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{ return (typename T::value_type*)(0); }
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template < class T >
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inline typename T::difference_type*
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__distance_type(const T&)
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{ return (typename T::difference_type*)(0); }
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template < class T >
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inline typename T::iterator_category
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__iterator_category (const T&)
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{
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typename T::iterator_category tmp;
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return tmp;
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}
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template < class T >
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inline T* __value_type(T*)
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{ return (T*)(0); }
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template <class T>
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inline std::ptrdiff_t*
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__distance_type (T*)
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{ return (std::ptrdiff_t*)(0); }
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template <class T>
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inline std::random_access_iterator_tag
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__iterator_category (T*)
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{ return std::random_access_iterator_tag(); }
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} // namespace CGAL
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#endif // CGAL_SUN_FIXES_H
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