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Diffstat (limited to 'src/corelib/tools/qpodlist_p.h')
-rw-r--r-- | src/corelib/tools/qpodlist_p.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/corelib/tools/qpodlist_p.h b/src/corelib/tools/qpodlist_p.h new file mode 100644 index 0000000000..e871eccba0 --- /dev/null +++ b/src/corelib/tools/qpodlist_p.h @@ -0,0 +1,115 @@ +/**************************************************************************** +** +** 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. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 Technology Preview License Agreement accompanying +** this package. +** +** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QPODLIST_P_H +#define QPODLIST_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <QtCore/qvarlengtharray.h> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Core) + +template <typename T, int Prealloc> +class QPodList : public QVarLengthArray<T, Prealloc> +{ + using QVarLengthArray<T, Prealloc>::s; + using QVarLengthArray<T, Prealloc>::a; + using QVarLengthArray<T, Prealloc>::ptr; + using QVarLengthArray<T, Prealloc>::realloc; +public: + inline explicit QPodList(int size = 0) + : QVarLengthArray<T, Prealloc>(size) + {} + + inline void insert(int idx, const T &t) + { + const int sz = s++; + if (s == a) + realloc(s, s << 1); + ::memmove(ptr + idx + 1, ptr + idx, (sz - idx) * sizeof(T)); + ptr[idx] = t; + } + + inline void removeAll(const T &t) + { + int i = 0; + for (int j = 0; j < s; ++j) { + if (ptr[j] != t) + ptr[i++] = ptr[j]; + } + s = i; + } + + inline void removeAt(int idx) + { + Q_ASSERT(idx >= 0 && idx < s); + ::memmove(ptr + idx, ptr + idx + 1, (s - idx - 1) * sizeof(T)); + --s; + } + + inline T takeFirst() + { + Q_ASSERT(s > 0); + T tmp = ptr[0]; + removeAt(0); + return tmp; + } +}; + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // QPODLIST_P_H |