mirror of https://github.com/CGAL/cgal
148 lines
3.9 KiB
C++
148 lines
3.9 KiB
C++
// ============================================================================
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//
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// Copyright (c) 1997, 1998, 1999, 2000 The CGAL Consortium
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//
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// This software and related documentation is part of an INTERNAL release
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// of the Computational Geometry Algorithms Library (CGAL). It is not
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// intended for general use.
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//
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// ----------------------------------------------------------------------------
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//
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// release : $CGAL_Revision: $
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// release_date : $CGAL_Date: $
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//
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// file : utility.h
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// chapter : $CGAL_Chapter: STL Extensions for CGAL $
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// package : $CGAL_Package: STL_Extension $
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// source : stl_extension.fw
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// revision : $Revision$
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// revision_date : $Date$
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// author(s) : Michael Hoffmann <hoffmann@inf.ethz.ch>
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// Lutz Kettner <kettner@cs.unc.edu>
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//
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// maintainer : Michael Hoffmann <hoffmann@inf.ethz.ch>
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// coordinator : ETH
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//
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// STL like utilities (Triple and such)
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// ============================================================================
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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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};
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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
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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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( (x.first == y.first) && (x.second < y.second) ) ||
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( (x.first == y.first) && (x.second == y.second) &&
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(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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};
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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.first < y.first ||
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( (x.first == y.first) && (x.second < y.second) ) ||
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( (x.first == y.first) && (x.second == y.second) &&
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(x.third < y.third) ) ||
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( (x.first == y.first) && (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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CGAL_END_NAMESPACE
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#endif // CGAL_UTILITY_H //
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// EOF //
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