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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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 1.1, 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QARRAYDATAOPS_H
#define QARRAYDATAOPS_H
#include <QtCore/qarraydata.h>
#include <new>
#include <string.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Core)
namespace QtPrivate {
template <class T>
struct QPodArrayOps
: QTypedArrayData<T>
{
void copyAppend(const T *b, const T *e)
{
Q_ASSERT(this->ref == 1);
Q_ASSERT(b < e);
Q_ASSERT(size_t(e - b) <= this->alloc - uint(this->size));
::memcpy(this->end(), b, (e - b) * sizeof(T));
this->size += e - b;
}
void copyAppend(size_t n, const T &t)
{
Q_ASSERT(this->ref == 1);
Q_ASSERT(n <= this->alloc - uint(this->size));
T *iter = this->end();
const T *const end = iter + n;
for (; iter != end; ++iter)
::memcpy(iter, &t, sizeof(T));
this->size += n;
}
void destroyAll() // Call from destructors, ONLY!
{
Q_ASSERT(this->ref == 0);
// As this is to be called only from destructor, it doesn't need to be
// exception safe; size not updated.
}
};
template <class T>
struct QGenericArrayOps
: QTypedArrayData<T>
{
void copyAppend(const T *b, const T *e)
{
Q_ASSERT(this->ref == 1);
Q_ASSERT(b < e);
Q_ASSERT(size_t(e - b) <= this->alloc - uint(this->size));
T *iter = this->end();
for (; b != e; ++iter, ++b) {
new (iter) T(*b);
++this->size;
}
}
void copyAppend(size_t n, const T &t)
{
Q_ASSERT(this->ref == 1);
Q_ASSERT(n <= this->alloc - uint(this->size));
T *iter = this->end();
const T *const end = iter + n;
for (; iter != end; ++iter) {
new (iter) T(t);
++this->size;
}
}
void destroyAll() // Call from destructors, ONLY
{
// As this is to be called only from destructor, it doesn't need to be
// exception safe; size not updated.
Q_ASSERT(this->ref == 0);
const T *const b = this->begin();
const T *i = this->end();
while (i != b)
(--i)->~T();
}
};
template <class T>
struct QMovableArrayOps
: QGenericArrayOps<T>
{
// using QGenericArrayOps<T>::copyAppend;
// using QGenericArrayOps<T>::destroyAll;
};
template <class T, class = void>
struct QArrayOpsSelector
{
typedef QGenericArrayOps<T> Type;
};
template <class T>
struct QArrayOpsSelector<T,
typename QEnableIf<
!QTypeInfo<T>::isComplex && !QTypeInfo<T>::isStatic
>::Type>
{
typedef QPodArrayOps<T> Type;
};
template <class T>
struct QArrayOpsSelector<T,
typename QEnableIf<
QTypeInfo<T>::isComplex && !QTypeInfo<T>::isStatic
>::Type>
{
typedef QMovableArrayOps<T> Type;
};
} // namespace QtPrivate
template <class T>
struct QArrayDataOps
: QtPrivate::QArrayOpsSelector<T>::Type
{
};
QT_END_NAMESPACE
QT_END_HEADER
#endif // include guard
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