source: trunk/src/corelib/tools/qvarlengtharray.h@ 5

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#ifndef QVARLENGTHARRAY_H
#define QVARLENGTHARRAY_H

#include <QtCore/qcontainerfwd.h>
#include <QtCore/qglobal.h>
#include <new>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Core)

// Prealloc = 256 by default, specified in qcontainerfwd.h
template<class T, int Prealloc>
class QVarLengthArray
{
public:
    inline explicit QVarLengthArray(int size = 0);

    inline QVarLengthArray(const QVarLengthArray<T, Prealloc> &other)
        : a(Prealloc), s(0), ptr(reinterpret_cast<T *>(array))
    {
        append(other.constData(), other.size());
    }

    inline ~QVarLengthArray() {
        if (QTypeInfo<T>::isComplex) {
            T *i = ptr + s;
            while (i-- != ptr)
                i->~T();
        }
        if (ptr != reinterpret_cast<T *>(array))
            qFree(ptr);
    }
    inline QVarLengthArray<T, Prealloc> &operator=(const QVarLengthArray<T, Prealloc> &other)
    {
        if (this != &other) {
            clear();
            append(other.constData(), other.size());
        }
        return *this;
    }

    inline void removeLast() {
        Q_ASSERT(s > 0);
        realloc(s - 1, a);
    }
    inline int size() const { return s; }
    inline int count() const { return s; }
    inline bool isEmpty() const { return (s == 0); }
    inline void resize(int size);
    inline void clear() { resize(0); }

    inline int capacity() const { return a; }
    inline void reserve(int size);