lemon-0.x: src/work/alpar/named-param-test4.cc@142633fc5014

     1 ///\file

     2 ///Named template study

     4 ///\e

     6 ///\e

     7 ///

     8 class AlgorithmDefaultTypes

9 {

    10 public:

    11 ///\e

    13 ///\e

    14 ///

    15   typedef int Adat;

    16 };

    18 ///\e

    20 ///\e

    21 ///

    22 template<class T = AlgorithmDefaultTypes>

    23 class AlgorithmTypes : public T

    24 {

    25 public:

    26 ///\e

    28 ///\e

    29 ///

    30   template<class X>

    31   class SetAdat : public T { X Adat; };

    32 };

    34 ///\e

    36 ///\e

    37 ///

    38 template<class T = AlgorithmTypes<> >

    39 class AlgorithmDefaultDataFields : public T

    40 {

    41 protected:

    42 ///\e

    44 ///\e

    45 ///

    46   typedef T TypeTraits; //Jo ez a nev?

    47 protected:

    48 ///\e

    50 ///\e

    51 ///

    52   typename T::Adat adat;

    53 };

    55 ///\e

    57 ///\e

    58 ///

    59 template<class T = AlgorithmDefaultDataFields<> >

    60 class Algorithm : public T

    61 {

    62   int _intAdat;

    63 public:

    64   Algorithm() {};

    65   Algorithm(const T &tt) : T(tt) {};

    67   template<class X> class _SetAdat : public T {

    68     protected:

    69     X adat;

    70     public:

    71     typedef X Adat;

    72     _SetAdat() {}; //"Algorithm<>::_SetAdat<double> b;"-hez kell!!!!

    73                    // De az is rossz!!!!!

    74     _SetAdat(const T &t,const X& x) : T(t), adat(x) {};

    75   };

    77  ///\name Funtion Named Parameters

    79   ///@{

    81   ///\e

    83   ///\e

    84   ///

    85   template<class X>

    86   Algorithm<_SetAdat<X> > setAdat(const X &x) {

    87     return Algorithm<_SetAdat<X> >(_SetAdat<X>(*this,x));

    88   }

    90   ///@}

    91   ///\name Named Parameters

    93   ///@{

    95   ///\e

    97   ///\e

    98   ///

    99   template<class X>

   100   class SetAdat :

   101     public Algorithm<AlgorithmDefaultDataFields<

   102     typename T::TypeTraits::template SetAdat<X> > >

   103   {};

   105   ///@}

   107 ///\e

   109 ///\e

   110 ///

   111   Algorithm &setIntAdat(int i) {_intAdat=i;return *this;}

   112   //vagy:

   113 ///Vagy

   115 ///Vagy...

   116 ///

   117   Algorithm &intAdat(int i) {_intAdat=i;return *this;}

   119   //Maga az algoritmus!!!!!!!

   120 ///\e

   122 ///\e

   123 ///

   124   typename T::Adat run()

   125   {

   126     //Itt csinalunk valamit

   127     return adat;

   128   }

   130   ~Algorithm()

   131   {

   132     //Itt nem csinalunk semmit

   133   }

   134 };

   136 ///\e

   138 ///\e

   139 ///

   140 Algorithm<> algorithm()

   141 {

   142   return Algorithm<>();

   143 }

   145 int main()

   146 {

   147   Algorithm<> a;

   148   a.run();

   150 //   Algorithm<>::_SetAdat<double> b; b=b;//Ez itt nem az, amit szeretnenk!!!

   151 //   //  b.run();

   153   Algorithm<>::SetAdat<double> c; //Algorithm<>::Adat<double> c; jobb vo'na

   154   c.run();

   156   algorithm().run();

   157   algorithm().setAdat(5.2).run();

   158 }

author	hegyi
	Fri, 01 Apr 2005 09:44:29 +0000
changeset 1289	142633fc5014
parent 1105	6777f0b0e7b5
permissions	-rw-r--r--