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39 | |
40 | #ifndef QSTACK_H |
41 | #define QSTACK_H |
42 | |
43 | #include <QtCore/qvector.h> |
44 | |
45 | QT_BEGIN_NAMESPACE |
46 | |
47 | |
48 | template<class T> |
49 | class QStack : public QVector<T> |
50 | { |
51 | public: |
52 | // compiler-generated special member functions are fine! |
53 | inline void swap(QStack<T> &other) noexcept { QVector<T>::swap(other); } // prevent QVector<->QStack swaps |
54 | inline void push(const T &t) { QVector<T>::append(t); } |
55 | T pop(); |
56 | T &top(); |
57 | const T &top() const; |
58 | }; |
59 | |
60 | template<class T> |
61 | inline T QStack<T>::pop() |
62 | { Q_ASSERT(!this->isEmpty()); T t = this->data()[this->size() -1]; |
63 | this->resize(this->size()-1); return t; } |
64 | |
65 | template<class T> |
66 | inline T &QStack<T>::top() |
67 | { Q_ASSERT(!this->isEmpty()); this->detach(); return this->data()[this->size()-1]; } |
68 | |
69 | template<class T> |
70 | inline const T &QStack<T>::top() const |
71 | { Q_ASSERT(!this->isEmpty()); return this->data()[this->size()-1]; } |
72 | |
73 | QT_END_NAMESPACE |
74 | |
75 | #endif // QSTACK_H |
76 | |