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39
40#ifndef QSTACK_H
41#define QSTACK_H
42
43#include <QtCore/qvector.h>
44
45QT_BEGIN_NAMESPACE
46
47
48template<class T>
49class QStack : public QVector<T>
50{
51public:
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
60template<class T>
61inline 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
65template<class T>
66inline T &QStack<T>::top()
67{ Q_ASSERT(!this->isEmpty()); this->detach(); return this->data()[this->size()-1]; }
68
69template<class T>
70inline const T &QStack<T>::top() const
71{ Q_ASSERT(!this->isEmpty()); return this->data()[this->size()-1]; }
72
73QT_END_NAMESPACE
74
75#endif // QSTACK_H
76

source code of qtbase/src/corelib/tools/qstack.h