mirror of https://github.com/CGAL/cgal
75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
// ======================================================================
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//
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// Copyright (c) 1999 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 :
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// release_date :
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//
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// file : Homogeneous.h
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// package : Kernel_basic
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// revision : $Revision$
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// revision_date : $Date$
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// author(s) : Stefan Schirra
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//
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// coordinator : MPI, Saarbruecken
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// ======================================================================
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#ifndef CGAL_HOMOGENEOUS_H
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#define CGAL_HOMOGENEOUS_H
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#include <CGAL/Homogeneous/Homogeneous_base.h>
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#include <CGAL/Handle_for.h>
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#include <CGAL/Kernel/Type_equality_wrapper.h>
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#include <CGAL/Quotient.h>
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CGAL_BEGIN_NAMESPACE
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template < typename RT_, typename FT_, typename Kernel >
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struct Homogeneous_base_ref_count
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: public Homogeneous_base< Kernel >
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{
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typedef RT_ RT;
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typedef FT_ FT;
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// The mecanism that allows to specify reference-counting or not.
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template < typename T >
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struct Handle { typedef Handle_for<T> type; };
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template < typename Kernel2 >
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struct Base {
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typedef Homogeneous_base_ref_count<RT_,FT_,Kernel2> Type;
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};
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// TODO: cleanup (use Rational_traits<> instead)
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static FT make_FT(const RT & num, const RT& denom)
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{ return FT(num, denom); }
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static FT make_FT(const RT & num)
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{ return FT(num); }
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static RT FT_numerator(const FT &r)
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{ return r.numerator(); }
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static RT FT_denominator(const FT &r)
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{ return r.denominator(); }
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};
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template < typename RT_, typename FT_ = Quotient<RT_> >
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struct Homogeneous
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: public Type_equality_wrapper<
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Homogeneous_base_ref_count<RT_, FT_, Homogeneous<RT_, FT_> >,
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Homogeneous<RT_, FT_> >
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{};
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CGAL_END_NAMESPACE
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CGAL_ITERATOR_TRAITS_POINTER_SPEC_TEMPLATE(CGAL::Homogeneous)
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#endif // CGAL_HOMOGENEOUS_H
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