libvtv/testsuite/libvtv.cc/test1.cc

   1 // { dg-do run }
   2
   3 // Small test case from povray, see if it reproduces.
   4
   5 #include <stdio.h>
   6
   7 class POVMS_MessageReceiver
   8 {
   9
  10 private:
  11    int x;
  12    class Handler
  13    {
  14       public:
  15          virtual void print() = 0;
  16    };
  17 protected:
  18    template<class T> class MemberHandler : public Handler
  19    {
  20    public:
  21       MemberHandler(T *xx)
  22       {
  23         x = xx;
  24       }
  25
  26       ~MemberHandler() {}
  27
  28       void print()
  29       {
  30          printf("In print\n");
  31       }
  32   private:
  33       T *x;
  34    };
  35
  36 private:
  37    struct HandlerNode
  38    {
  39       Handler *handler;
  40    };
  41
  42    HandlerNode *receiver;
  43 public:
  44    POVMS_MessageReceiver(int xx) : x(xx) {}
  45    ~POVMS_MessageReceiver() {}
  46
  47    void foo(int *xx);
  48    void try_call();
  49 };
  50
  51 void POVMS_MessageReceiver::foo(int *xx)
  52 {
  53    receiver = new HandlerNode;
  54
  55    receiver->handler = new MemberHandler<int>(xx);
  56 }
  57
  58 void POVMS_MessageReceiver::try_call()
  59 {
  60    receiver->handler->print();
  61 }
  62
  63
  64 int main()
  65 {
  66    int loc = 34;
  67    POVMS_MessageReceiver a_test(100);
  68
  69    a_test.foo(&loc);
  70    a_test.try_call();
  71 }
  72
  73
  74