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CSE 2341 Object Oriented Programming with C++ Note Set #17

CSE 2341 Object Oriented Programming with C++ Note Set #17. Overview. Templates Class templates. Class Templates. Templates can be used to create generic ADTs. Can create one general version of class w/o having to duplicate for different data types

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CSE 2341 Object Oriented Programming with C++ Note Set #17

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  1. CSE 2341Object Oriented Programming with C++Note Set #17

  2. Overview • Templates • Class templates

  3. Class Templates • Templates can be used to create generic ADTs. • Can create one general version of class w/o having to duplicate for different data types • Template prefix placed before class declaration

  4. SimpleVector template<class T> class SimpleVector { private: T* aptr; int arraySize; void memError(); void subError(); public: SimpleVector() {aptr = 0; arraySize = 0;} SimpleVector(int); SimpleVector(const SimpleVector&); ~SimpleVector(); int size() {return arraySize;} t& operator[](const int&); } Complete Definition in Handout SimpleVector.h

  5. Defining Objects of the Class Template • Data type that is to be passed as the type parameter is placed in angle brackets after the class name as in: SimpleVector<int> intTable(10); SimpleVector<double> doubleTable(10)

  6. Templates and Inheritance • Templated classes can be involved in inheritance template <class T> class SearchableVector:public SimpleVector<T> { public: SearchableVector(int s):SimpleVector<T>(s) {} SearchableVector(SearchableVector&); SearchableVector(SimpleVector<T>& obj): SimpleVector<T>(obj) {} int findItem(T); };

  7. Fini ?

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