| 1 | // Copyright (C) 2022 The Qt Company Ltd. |
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
| 3 | |
| 4 | #ifndef QTCORE_QSWAP_H |
| 5 | #define QTCORE_QSWAP_H |
| 6 | |
| 7 | #include <QtCore/qtconfigmacros.h> |
| 8 | |
| 9 | #include <type_traits> |
| 10 | #include <utility> |
| 11 | |
| 12 | #if 0 |
| 13 | #pragma qt_class(QtSwap) |
| 14 | #pragma qt_sync_stop_processing |
| 15 | #endif |
| 16 | |
| 17 | QT_BEGIN_NAMESPACE |
| 18 | |
| 19 | template <typename T> |
| 20 | constexpr void qSwap(T &value1, T &value2) |
| 21 | noexcept(std::is_nothrow_swappable_v<T>) |
| 22 | { |
| 23 | using std::swap; |
| 24 | swap(value1, value2); |
| 25 | } |
| 26 | |
| 27 | // pure compile-time micro-optimization for our own headers, so not documented: |
| 28 | template <typename T> |
| 29 | constexpr inline void qt_ptr_swap(T* &lhs, T* &rhs) noexcept |
| 30 | { |
| 31 | T *tmp = lhs; |
| 32 | lhs = rhs; |
| 33 | rhs = tmp; |
| 34 | } |
| 35 | |
| 36 | QT_END_NAMESPACE |
| 37 | |
| 38 | #endif // QTCORE_QSWAP_H |
| 39 | |