function.hh

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// -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
// vi: set et ts=4 sw=2 sts=2:
#ifndef DUNE_FUNCTION_HH
#define DUNE_FUNCTION_HH
 
 
#include "typetraits.hh"
 
namespace Dune {
 
  template <class Domain, class Range>
  class Function
  {
    typedef typename std::remove_cv<typename std::remove_reference< Domain >::type >::type RawDomainType;
    typedef typename std::remove_cv<typename std::remove_reference< Range >::type >::type RawRangeType;
 
  public:
 
    typedef RawRangeType RangeType;
 
    typedef RawDomainType DomainType;
 
    struct Traits
    {
      typedef RawDomainType DomainType;
      typedef RawRangeType RangeType;
    };
 
    void evaluate(const typename Traits::DomainType& x, typename Traits::RangeType& y) const;
  }; // end of Function class
 
 
 
  template <class DomainType, class RangeType>
  class VirtualFunction :
    public Function<const DomainType&, RangeType&>
  {
  public:
    typedef typename Function<const DomainType&, RangeType&>::Traits Traits;
 
    virtual ~VirtualFunction() {}
    virtual void evaluate(const typename Traits::DomainType& x, typename Traits::RangeType& y) const = 0;
  }; // end of VirtualFunction class
 
} // end namespace
 
#endif