Long live Qt for S60!

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diff --git a/src/corelib/tools/qvarlengtharray.h b/src/corelib/tools/qvarlengtharray.h
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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);
+
+    inline T &operator[](int idx) {
+        Q_ASSERT(idx >= 0 && idx < s);
+        return ptr[idx];
+    }
+    inline const T &operator[](int idx) const {
+        Q_ASSERT(idx >= 0 && idx < s);
+        return ptr[idx];
+    }
+
+    inline void append(const T &t) {
+        if (s == a)   // i.e. s != 0
+            realloc(s, s<<1);
+        const int idx = s++;
+        if (QTypeInfo<T>::isComplex) {
+            new (ptr + idx) T(t);
+        } else {
+            ptr[idx] = t;
+        }
+    }
+    void append(const T *buf, int size);
+
+    inline T *data() { return ptr; }
+    inline const T *data() const { return ptr; }
+    inline const T * constData() const { return ptr; }
+
+private:
+    void realloc(int size, int alloc);
+
+    int a;
+    int s;
+    T *ptr;
+    union {
+        // ### Qt 5: Use 'Prealloc * sizeof(T)' as array size
+        char array[sizeof(qint64) * (((Prealloc * sizeof(T)) / sizeof(qint64)) + 1)];
+        qint64 q_for_alignment_1;
+        double q_for_alignment_2;
+    };
+};
+
+template <class T, int Prealloc>
+Q_INLINE_TEMPLATE QVarLengthArray<T, Prealloc>::QVarLengthArray(int asize)
+    : s(asize) {
+    if (s > Prealloc) {
+        ptr = reinterpret_cast<T *>(qMalloc(s * sizeof(T)));
+        a = s;
+    } else {
+        ptr = reinterpret_cast<T *>(array);
+        a = Prealloc;
+    }
+    if (QTypeInfo<T>::isComplex) {
+        T *i = ptr + s;
+        while (i != ptr)
+            new (--i) T;
+    }
+}
+
+template <class T, int Prealloc>
+Q_INLINE_TEMPLATE void QVarLengthArray<T, Prealloc>::resize(int asize)
+{ realloc(asize, qMax(asize, a)); }
+
+template <class T, int Prealloc>
+Q_INLINE_TEMPLATE void QVarLengthArray<T, Prealloc>::reserve(int asize)
+{ if (asize > a) realloc(s, asize); }
+
+template <class T, int Prealloc>
+Q_OUTOFLINE_TEMPLATE void QVarLengthArray<T, Prealloc>::append(const T *abuf, int asize)
+{
+    Q_ASSERT(abuf);
+    if (asize <= 0)
+        return;
+
+    const int idx = s;
+    const int news = s + asize;
+    if (news >= a)
+        realloc(s, qMax(s<<1, news));
+    s = news;
+
+    if (QTypeInfo<T>::isComplex) {
+        T *i = ptr + idx;
+        T *j = i + asize;
+        while (i < j)
+            new (i++) T(*abuf++);
+    } else {
+        qMemCopy(&ptr[idx], abuf, asize * sizeof(T));
+    }
+}
+
+template <class T, int Prealloc>
+Q_OUTOFLINE_TEMPLATE void QVarLengthArray<T, Prealloc>::realloc(int asize, int aalloc)
+{
+    Q_ASSERT(aalloc >= asize);
+    T *oldPtr = ptr;
+    int osize = s;
+    s = asize;
+
+    if (aalloc != a) {
+        ptr = reinterpret_cast<T *>(qMalloc(aalloc * sizeof(T)));
+        if (ptr) {
+            a = aalloc;
+
+            if (QTypeInfo<T>::isStatic) {
+                T *i = ptr + osize;
+                T *j = oldPtr + osize;
+                while (i != ptr) {
+                    new (--i) T(*--j);
+                    j->~T();
+                }
+            } else {
+                qMemCopy(ptr, oldPtr, osize * sizeof(T));
+            }
+        } else {
+            ptr = oldPtr;
+            s = 0;
+            asize = 0;
+        }
+    }
+
+    if (QTypeInfo<T>::isComplex) {
+        if (asize < osize) {
+            T *i = oldPtr + osize;
+            T *j = oldPtr + asize;
+            while (i-- != j)
+                i->~T();
+        } else {
+            T *i = ptr + asize;
+            T *j = ptr + osize;
+            while (i != j)
+                new (--i) T;
+        }
+    }
+
+    if (oldPtr != reinterpret_cast<T *>(array) && oldPtr != ptr)
+        qFree(oldPtr);
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QVARLENGTHARRAY_H