ListAssignmentProxy.h

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#ifndef _utl_ListAssignmentProxy_h_
#define _utl_ListAssignmentProxy_h_


namespace utl {


  template<class T>
  class Identity {
  public:
    typedef T Type;
  };


  template<class Assignee, unsigned int i = 1>
  class ListVectorAssignmentProxy {
  public:
    template<typename Element>
    ListVectorAssignmentProxy<Assignee, i+1>
    operator,(const Element& e)
    {
      fAssignee[i] = e;
      return ListVectorAssignmentProxy<Assignee, i+1>(fAssignee);
    }

  private:
    ListVectorAssignmentProxy(Assignee& v) : fAssignee(v) { }

    Assignee& fAssignee;

#if __cplusplus < 201103L && !defined(__clang__)
    friend class Identity<Assignee>::Type;
#else
    friend typename Identity<Assignee>::Type;
#endif

    friend class ListVectorAssignmentProxy<Assignee, i-1>;
  };


  template<class Assignee, unsigned int n, unsigned int i = 1>
  class ListMatrixAssignmentProxy {
  public:
    template<typename Element>
    ListMatrixAssignmentProxy<Assignee, n, i+1>
    operator,(const Element& e)
    {
      fAssignee[i/n][i%n] = e;
      return ListMatrixAssignmentProxy<Assignee, n, i+1>(fAssignee);
    }

  private:
    ListMatrixAssignmentProxy(Assignee& m) : fAssignee(m) { }

    Assignee& fAssignee;

#if __cplusplus < 201103L && !defined(__clang__)
    friend class Identity<Assignee>::Type;
#else
    friend typename Identity<Assignee>::Type;
#endif

    friend class ListMatrixAssignmentProxy<Assignee, n, i-1>;
  };


}


#endif