include/library/map-pointer.hpp

   1 #ifndef _library__map_pointer__hpp__
   2 #define _library__map_pointer__hpp__
   3
   4 template<typename T> struct map_pointer
   5 {
   6         map_pointer()
   7         {
   8                 p = NULL;
   9         }
  10         map_pointer& operator=(T* ptr)
  11         {
  12                 p = ptr;
  13                 return *this;
  14         }
  15         ~map_pointer()
  16         {
  17                 if(p)
  18                         delete p;
  19         }
  20         T& operator*()
  21         {
  22                 return *p;
  23         }
  24         T* operator->()
  25         {
  26                 return p;
  27         }
  28         map_pointer(const map_pointer& q)
  29         {
  30                 if(q.p)
  31                         throw std::runtime_error("Bad map pointer copy");
  32                 p = NULL;
  33         }
  34 private:
  35         map_pointer& operator=(const map_pointer&);
  36         T* p;
  37 };
  38
  39 #endif