QScopedPointer

scopedptr.cpp

#include <QScopedPointer>

class PlayerData
{
public:
   PlayerData() : health(100), atk(10), agi(10), name (new char[255]) {}
   ~PlayerData() { delete [] name; }
   char *name;
   int health, atk, agi;
};

// contoh tanpa smart pointer
void doSomePlayerJobDumb() {
  PlayerData *ptrPlayerData = new PlayerData;
  -- ptrPlayerData->health;
  delete ptrPlayerData;
}

// contoh pointer dengan smart pointer
void doSomePlayerJob() {
  QScopedPointer<PlayerData> ptrPlayerData( new PlayerData );
  -- ptrPlayerData->health;
  // ketika keluar scope, destructor dipanggil
}