libvtv/testsuite/template-list-iostream.cc

   1 #include <assert.h>
   2 #include <iostream>
   3 #include <fstream>
   4
   5 using std::ofstream;
   6 using std::ifstream;
   7 using std::ios;
   8
   9 extern "C" int printf(const char *, ...);
  10
  11 class Subscriptor
  12 {
  13   public:
  14
  15   Subscriptor() : counter(1) {}
  16
  17   virtual ~Subscriptor()
  18   {
  19     counter--;
  20     assert(counter == 0);
  21   }
  22
  23   private:
  24     mutable int counter;
  25 };
  26
  27 template <int dim> struct Function
  28 {
  29   Function(int i): value(dim + i) {}
  30   int value;
  31 };
  32
  33 template <int dim> struct Triangulation
  34 {
  35
  36 };
  37
  38 template <int dim> struct Exercise_2_3
  39 {
  40   enum { DIM = dim };
  41 };
  42
  43   template <int dim>
  44   struct SetUpBase : public Subscriptor
  45   {
  46       virtual
  47       const Function<dim> get_boundary_values () const = 0;
  48
  49       virtual
  50       const Function<dim> get_right_hand_side () const = 0;
  51
  52     //      virtual
  53     //      void create_coarse_grid (Triangulation<dim> &coarse_grid) const = 0;
  54   };
  55
  56   template <class Traits, int dim>
  57   struct SetUp : public SetUpBase<dim>
  58   {
  59       SetUp () {};
  60
  61       virtual
  62       const Function<dim>  get_boundary_values () const
  63     { return Function<dim>(Traits::DIM); }
  64
  65       virtual
  66       const Function<dim>  get_right_hand_side () const
  67     { return Function<dim>(Traits::DIM); }
  68
  69     //      virtual
  70     //      void create_coarse_grid (Triangulation<dim> &coarse_grid) const;
  71
  72     //      static const typename Traits::BoundaryValues boundary_values;
  73     //      static const typename Traits::RightHandSide  right_hand_side;
  74   };
  75
  76
  77 void myread(std::istream * in)
  78 {
  79   char input_str[50] = "\0";
  80   if (in->good())
  81     (*in) >> input_str;
  82   std::cout << input_str << std::endl;
  83   delete in;
  84 }
  85
  86
  87
  88 int main()
  89 {
  90   /*
  91
  92   SetUp<Exercise_2_3<1000>, 2> s1a;
  93   SetUp<Exercise_2_3<2000>, 1> s2;
  94   SetUp<Exercise_2_3<2000>, 2> s2a;
  95   return s1->get_boundary_values().value + s1a.get_boundary_values().value +
  96       s2.get_boundary_values().value + s2a.get_boundary_values().value +
  97       s1->get_right_hand_side().value + s1a.get_right_hand_side().value +
  98       s2.get_right_hand_side().value + s2a.get_right_hand_side().value;
  99   */
 100
 101   SetUp<Exercise_2_3<1000>, 1> * s1 =  new  SetUp<Exercise_2_3<1000>, 1>();
 102
 103   printf("%d\n", s1->get_boundary_values().value);
 104
 105   ifstream * infile = new ifstream("./template-list-iostream.cc");
 106
 107   myread(infile);
 108
 109   ofstream * outfile = new ofstream("/tmp/xxx.txt");
 110
 111   if (outfile->good())
 112     (*outfile) << "hello there" << std::endl;
 113   std::cerr << "Reached End" << std::endl;
 114
 115   delete outfile;
 116
 117   return 0;
 118 }