mirror of https://github.com/CGAL/cgal
186 lines
4.9 KiB
C++
186 lines
4.9 KiB
C++
// Copyright (c) 2003 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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// $URL$
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// $Id$
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//
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//
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// Author(s) : Michael Hoffmann <hoffmann@inf.ethz.ch>
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// Lutz Kettner <kettner@mpi-sb.mpg.de>
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// Sylvain Pion <Sylvain.Pion@sophia.inria.fr>
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#ifndef CGAL_UTILITY_H
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#define CGAL_UTILITY_H 1
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#include <CGAL/basic.h>
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CGAL_BEGIN_NAMESPACE
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//+---------------------------------------------------------------------+
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//| Triple class |
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//+---------------------------------------------------------------------+
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template <class T1, class T2, class T3>
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struct Triple
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{
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typedef T1 first_type;
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typedef T2 second_type;
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typedef T3 third_type;
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T1 first;
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T2 second;
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T3 third;
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Triple() {}
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Triple(const T1& a, const T2& b, const T3& c)
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: first(a), second(b), third(c)
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{}
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template <class U, class V, class W>
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Triple(const U& a, const V& b, const W& c)
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: first(a), second(b), third(c)
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{}
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template <class U, class V, class W>
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Triple& operator=(const Triple<U, V, W> &t) {
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first = t.first;
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second = t.second;
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third = t.third;
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return *this;
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}
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};
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template <class T1, class T2, class T3>
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inline
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Triple<T1, T2, T3> make_triple(const T1& x, const T2& y, const T3& z)
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{
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return Triple<T1, T2, T3>(x, y, z);
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}
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template <class T1, class T2, class T3>
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inline bool operator==(const Triple<T1, T2, T3>& x,
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const Triple<T1, T2, T3>& y)
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{
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return ( (x.first == y.first) &&
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(x.second == y.second) &&
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(x.third == y.third) );
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}
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template <class T1, class T2, class T3>
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inline bool operator!=(const Triple<T1, T2, T3>& x,
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const Triple<T1, T2, T3>& y)
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{
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return !(x == y);
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}
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template <class T1, class T2, class T3>
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inline
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bool operator<(const Triple<T1, T2, T3>& x,
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const Triple<T1, T2, T3>& y)
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{
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return ( x.first < y.first ||
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( !(y.first < x.first) &&
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( x.second < y.second ||
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( !(y.second < x.second) && x.third < y.third ) ) ) );
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}
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//+---------------------------------------------------------------------+
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//| Quadruple class |
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//+---------------------------------------------------------------------+
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template <class T1, class T2, class T3, class T4>
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struct Quadruple
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{
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typedef T1 first_type;
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typedef T2 second_type;
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typedef T3 third_type;
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typedef T4 fourth_type;
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T1 first;
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T2 second;
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T3 third;
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T4 fourth;
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Quadruple() {}
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Quadruple(const T1& a, const T2& b, const T3& c, const T4& d)
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: first(a), second(b), third(c), fourth(d)
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{}
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template <class U, class V, class W, class X>
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Quadruple(const U& a, const V& b, const W& c, const X& d)
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: first(a), second(b), third(c), fourth(d)
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{}
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template <class U, class V, class W, class X>
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Quadruple& operator=(const Quadruple<U, V, W, X> &q) {
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first = q.first;
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second = q.second;
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third = q.third;
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fourth = q.fourth;
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return *this;
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}
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};
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template <class T1, class T2, class T3, class T4>
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inline
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Quadruple<T1, T2, T3, T4>
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make_quadruple(const T1& x, const T2& y, const T3& z, const T4& zz)
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{
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return Quadruple<T1, T2, T3, T4>(x, y, z, zz);
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}
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template <class T1, class T2, class T3, class T4>
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inline
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bool
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operator==(const Quadruple<T1, T2, T3, T4>& x,
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const Quadruple<T1, T2, T3, T4>& y)
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{
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return ( (x.first == y.first) &&
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(x.second == y.second) &&
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(x.third == y.third) &&
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(x.fourth == y.fourth) );
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}
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template <class T1, class T2, class T3, class T4>
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inline
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bool
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operator!=(const Quadruple<T1, T2, T3, T4>& x,
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const Quadruple<T1, T2, T3, T4>& y)
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{
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return ! (x == y);
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}
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template <class T1, class T2, class T3, class T4>
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inline
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bool
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operator<(const Quadruple<T1, T2, T3, T4>& x,
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const Quadruple<T1, T2, T3, T4>& y)
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{
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return ( x.first < y.first ||
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( !(y.first < x.first) &&
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( x.second < y.second ||
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( !(y.second < x.second) &&
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( x.third < y.third ||
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(!(y.third < x.third) && x.fourth < y.fourth)) ) ) ) );
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}
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CGAL_END_NAMESPACE
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#endif // CGAL_UTILITY_H
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