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  1. #include <iostream>
  2. #include <time.h>  
  3. using namespace std;      
  4.  
  5. class CTimer
  6. {
  7.     time_t _last;
  8.     CTimer() { _last = time( NULL ); }
  9.     CTimer(const CTimer &);
  10.     CTimer& operator=(const CTimer&);
  11.     ~CTimer()
  12. 	{}
  13. public:
  14.     static CTimer& getInstance(){        
  15.         static CTimer instance;
  16.         return instance;
  17.     }
  18.  
  19.     float getDelta(){
  20.         time_t now = time( NULL );
  21.         float delta = (float)(now - _last);     
  22.         return delta;
  23.     }
  24.     //should be called at the beginning of rendering function
  25.     void update(){
  26.         _last = time( NULL );
  27.     }
  28. };
  29.  
  30. int main()
  31. {
  32. cout<<"ok";
  33. int vel = 4;
  34. int posX = (vel * CTimer::getInstance().getDelta());
  35. return 0;
  36. }
Success #stdin #stdout 0s 2852KB
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stdout 
ok
https://ideone.com/TqtLVX
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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