Philipp Möller
ab5c017c08
Those cause trouble, because on MSVC the include paths for tr1 components are different from gcc. Instead of fixing up the include paths depending on platform, just never use a tr1 component. Nothing of value is lost compared to the boost equivalents and it removes another code-path.
232 lines
6.1 KiB
C++
232 lines
6.1 KiB
C++
// Copyright (c) 2009 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); 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; either version 3 of the License,
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// or (at your option) any later version.
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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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// $URL$
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// $Id$
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//
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// Author(s) : Sebastien Loriot, Sylvain Pion
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#ifndef CGAL_TUPLE_H
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#define CGAL_TUPLE_H
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// A wrapper around C++0x, TR1 or Boost tuple<>.
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// Together with the Is_in_tuple<> tool.
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#include <CGAL/config.h>
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#ifndef CGAL_CFG_NO_CPP0X_TUPLE
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# include <tuple>
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#else
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# include <boost/tuple/tuple.hpp>
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# include <boost/tuple/tuple_comparison.hpp>
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# include <utility>
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#endif
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namespace CGAL {
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namespace cpp11 {
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#ifndef CGAL_CFG_NO_CPP0X_TUPLE
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using std::tuple;
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using std::make_tuple;
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using std::tie;
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using std::get;
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using std::tuple_size;
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using std::tuple_element;
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#else
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using boost::tuple;
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using boost::make_tuple;
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using boost::tie;
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using boost::get;
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//tuple_size
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template <class T>
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struct tuple_size:public boost::tuples::length<T> {};
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//tuple_element
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template <int N,class T>
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struct tuple_element: public boost::tuples::element<N,T>{};
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#endif
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#if defined(CGAL_CFG_NO_CPP0X_TUPLE)
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// If not C++11 tuple, we need to add get<N>(std::pair).
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////////////////////////////////////////////////////////////
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// //
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// Allow CGAL::cpp0x::get<N>(std::pair), if N==0 or N==1. //
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// //
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// That is already in TR1 and C++11, but not in Boost. //
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// //
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////////////////////////////////////////////////////////////
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template <std::size_t N, typename T1, typename T2>
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struct pair_get;
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template <typename T1, typename T2>
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struct pair_get<0, T1, T2> {
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static T1& get(std::pair<T1, T2>& pair) { return pair.first; }
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static const T1& get(const std::pair<T1, T2>& pair) { return pair.first; }
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}; // end specialization struct pair_get<0, T2, T2>
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template <typename T1, typename T2>
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struct pair_get<1, T1, T2> {
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static T2& get(std::pair<T1, T2>& pair) { return pair.second; }
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static const T2& get(const std::pair<T1, T2>& pair) { return pair.second; }
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}; // end specialization struct pair_get<0, T2, T2>
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template <std::size_t N, typename T1, typename T2>
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inline typename boost::tuples::element<N, boost::tuple<T1, T2> >::type&
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get(std::pair<T1, T2>& pair) {
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return pair_get<N, T1, T2>::get(pair);
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}
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template <std::size_t N, typename T1, typename T2>
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inline const typename boost::tuples::element<N, boost::tuple<T1, T2> >::type&
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get(const std::pair<T1, T2>& pair) {
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return pair_get<N, T1, T2>::get(pair);
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}
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#endif // end if not C++11 tuple
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} // cpp11
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namespace cpp0x = cpp11;
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#ifndef CGAL_CFG_NO_CPP0X_VARIADIC_TEMPLATES
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// Tool to test whether a type V is among the types of a tuple<...> = T.
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template <typename V, typename T>
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struct Is_in_tuple;
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template <typename V, typename T0, typename... T>
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struct Is_in_tuple <V, cpp0x::tuple<T0, T...> >
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{
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static const bool value = Is_in_tuple<V, cpp0x::tuple<T...> >::value;
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};
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template <typename V, typename... T>
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struct Is_in_tuple <V, cpp0x::tuple<V, T...> >
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{
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static const bool value = true;
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};
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template <typename V>
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struct Is_in_tuple <V, cpp0x::tuple<> >
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{
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static const bool value = false;
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};
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#else
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// Non-variadic version
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template <typename V,typename T>
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struct Is_in_tuple;
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template <typename V,typename T0,typename T1>
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struct Is_in_tuple <V,cpp0x::tuple<T0,T1> >
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{
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static const bool value = Is_in_tuple<V,cpp0x::tuple<T1> >::value;
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};
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template <typename V, typename T0,typename T1,typename T2>
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struct Is_in_tuple <V, cpp0x::tuple<T0,T1,T2> >
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{
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static const bool value = Is_in_tuple<V,cpp0x::tuple<T1,T2> >::value;
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};
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template <typename V, typename T0,typename T1,typename T2,typename T3>
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struct Is_in_tuple <V, cpp0x::tuple<T0,T1,T2,T3> >
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{
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static const bool value = Is_in_tuple<V,cpp0x::tuple<T1,T2,T3> >::value;
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};
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template <typename V, typename T0,typename T1,typename T2,typename T3,typename T4>
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struct Is_in_tuple <V, cpp0x::tuple<T0,T1,T2,T3,T4> >
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{
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static const bool value = Is_in_tuple<V,cpp0x::tuple<T1,T2,T3,T4> >::value;
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};
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template <typename V, typename T0,typename T1,typename T2,typename T3,typename T4,typename T5>
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struct Is_in_tuple <V, cpp0x::tuple<T0,T1,T2,T3,T4,T5> >
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{
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static const bool value = Is_in_tuple<V,cpp0x::tuple<T1,T2,T3,T4,T5> >::value;
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};
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template <typename V, typename T0,typename T1,typename T2,typename T3,typename T4,typename T5,typename T6>
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struct Is_in_tuple <V, cpp0x::tuple<T0,T1,T2,T3,T4,T5,T6> >
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{
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static const bool value = Is_in_tuple<V,cpp0x::tuple<T1,T2,T3,T4,T5,T6> >::value;
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};
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//Conclusions
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template <typename V,typename T1>
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struct Is_in_tuple <V,cpp0x::tuple<T1> >
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{
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static const bool value = false;
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};
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template <typename V>
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struct Is_in_tuple <V,cpp0x::tuple<V> >
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{
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static const bool value = true;
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};
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template <typename V,typename T1>
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struct Is_in_tuple <V,cpp0x::tuple<V,T1> >
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{
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static const bool value = true;
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};
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template <typename V,typename T1,typename T2>
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struct Is_in_tuple <V,cpp0x::tuple<V,T1,T2> >
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{
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static const bool value = true;
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};
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template <typename V,typename T1,typename T2,typename T3>
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struct Is_in_tuple <V,cpp0x::tuple<V,T1,T2,T3> >
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{
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static const bool value = true;
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};
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template <typename V,typename T1,typename T2,typename T3,typename T4>
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struct Is_in_tuple <V,cpp0x::tuple<V,T1,T2,T3,T4> >
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{
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static const bool value = true;
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};
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template <typename V,typename T1,typename T2,typename T3,typename T4,typename T5>
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struct Is_in_tuple <V,cpp0x::tuple<V,T1,T2,T3,T4,T5> >
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{
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static const bool value = true;
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};
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template <typename V,typename T1,typename T2,typename T3,typename T4,typename T5,typename T6>
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struct Is_in_tuple <V,cpp0x::tuple<V,T1,T2,T3,T4,T5,T6> >
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{
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static const bool value = true;
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};
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#endif
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} //namespace CGAL
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#endif // CGAL_TUPLE_H
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