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Re: Exam prep November 14, 2009 09:23PM |
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Re: Exam prep November 14, 2009 10:36PM |
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Re: Exam prep November 15, 2009 10:49AM |
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Re: Exam prep November 16, 2009 12:27PM |
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Re: Exam prep November 16, 2009 07:19PM |
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Re: Exam prep November 16, 2009 07:56PM |
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Language: C++ (QT)[singleton.h] class Singleton : public QObject { Q_OBJECT public: static Singleton *getInstance(); void setOtherParams(); // ... private: Singleton(); static Singleton *instance; }; [singleton.cpp] #include “singleton.h†Singleton *Singleton::instance = 0 Singleton *Singleton::getInstance() //this is the singleton factory { if( instance == 0 ) { instance = new Singleton(); } return instance; }
Re: Exam prep November 16, 2009 11:24PM |
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Re: Exam prep November 16, 2009 11:24PM |
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Language: C++ (QT)int main(int argc, char* argv[]) { Singleton *aRefToSingleton = Singleton::getInstance(); aRefToSingleton->setOtherParams(); }
Re: Exam prep November 17, 2009 08:12AM |
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Re: Exam prep November 17, 2009 11:18AM |
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Language: C++[h file] class Singleton{ public: Singleton &instance(); protected: static Singleton classInstance; Singleton(); ~Singleton(); }; [cpp file] Singleton Singleton::classInstance; // automatic instance creation Singleton::Singleton(){ // initialisation } Singleton::~Singleton(){ // destruction } Singleton &Singleton::instance(){ return classInstance; }
Re: Exam prep November 17, 2009 08:46PM |
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Re: Exam prep November 19, 2009 09:33AM |
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Re: Exam prep November 19, 2009 10:10AM |
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Re: Exam prep November 19, 2009 11:25AM |
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Re: Exam prep November 19, 2009 03:35PM |
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Re: Exam prep November 20, 2009 08:44AM |
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Re: Exam prep November 20, 2009 09:46AM |
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Re: Exam prep November 20, 2009 09:54AM |
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Language: C++ (QT)Singleton* Singleton::instance() { static Singleton* s = 0; if (s == 0) { s = new Singleton(); } return s; }
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Re: Exam prep November 20, 2009 10:04AM |
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Re: Exam prep November 20, 2009 10:06AM |
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Re: Exam prep November 20, 2009 11:02AM |
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Re: Exam prep November 20, 2009 12:47PM |
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Re: Exam prep November 20, 2009 12:53PM |
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Re: Exam prep November 20, 2009 01:07PM |
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Re: Exam prep November 20, 2009 01:08PM |
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Re: Exam prep November 20, 2009 01:12PM |
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Re: Exam prep November 20, 2009 01:18PM |
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Re: Exam prep November 20, 2009 01:23PM |
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Re: Exam prep November 20, 2009 01:25PM |
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