dvi/dvilib/dl-refcounted.hh

   1 #ifndef DL_REFCOUNTED_HH
   2 #define DL_REFCOUNTED_HH
   3
   4 using namespace std;
   5
   6 typedef unsigned int uint;
   7 typedef unsigned char uchar;
   8
   9 namespace DviLib {
  10
  11     class RefCounted
  12     {
  13         int refcount;
  14
  15     public:
  16
  17         RefCounted (void)
  18         {
  19             refcount = 1;
  20         }
  21
  22         RefCounted *ref (void)
  23         {
  24             refcount++;
  25             return this;
  26         }
  27
  28         void unref (void)
  29         {
  30             refcount--;
  31             if (!refcount)
  32                 delete this;
  33         }
  34     };
  35 }
  36
  37 #endif // DL_REFCOUNTED_HH