LCOV - code coverage report
Current view: top level - usr/include/x86_64-linux-gnu/qt5/QtCore - qbasicatomic.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 4 4 100.0 %
Date: 2016-11-29 15:07:43 Functions: 4 5 80.0 %

          Line data    Source code
       1             : /****************************************************************************
       2             : **
       3             : ** Copyright (C) 2011 Thiago Macieira <thiago@kde.org>
       4             : ** Contact: http://www.qt-project.org/legal
       5             : **
       6             : ** This file is part of the QtCore module of the Qt Toolkit.
       7             : **
       8             : ** $QT_BEGIN_LICENSE:LGPL$
       9             : ** Commercial License Usage
      10             : ** Licensees holding valid commercial Qt licenses may use this file in
      11             : ** accordance with the commercial license agreement provided with the
      12             : ** Software or, alternatively, in accordance with the terms contained in
      13             : ** a written agreement between you and Digia.  For licensing terms and
      14             : ** conditions see http://qt.digia.com/licensing.  For further information
      15             : ** use the contact form at http://qt.digia.com/contact-us.
      16             : **
      17             : ** GNU Lesser General Public License Usage
      18             : ** Alternatively, this file may be used under the terms of the GNU Lesser
      19             : ** General Public License version 2.1 as published by the Free Software
      20             : ** Foundation and appearing in the file LICENSE.LGPL included in the
      21             : ** packaging of this file.  Please review the following information to
      22             : ** ensure the GNU Lesser General Public License version 2.1 requirements
      23             : ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
      24             : **
      25             : ** In addition, as a special exception, Digia gives you certain additional
      26             : ** rights.  These rights are described in the Digia Qt LGPL Exception
      27             : ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
      28             : **
      29             : ** GNU General Public License Usage
      30             : ** Alternatively, this file may be used under the terms of the GNU
      31             : ** General Public License version 3.0 as published by the Free Software
      32             : ** Foundation and appearing in the file LICENSE.GPL included in the
      33             : ** packaging of this file.  Please review the following information to
      34             : ** ensure the GNU General Public License version 3.0 requirements will be
      35             : ** met: http://www.gnu.org/copyleft/gpl.html.
      36             : **
      37             : **
      38             : ** $QT_END_LICENSE$
      39             : **
      40             : ****************************************************************************/
      41             : 
      42             : #include <QtCore/qatomic.h>
      43             : 
      44             : #ifndef QBASICATOMIC_H
      45             : #define QBASICATOMIC_H
      46             : 
      47             : #if defined(QT_BOOTSTRAPPED)
      48             : #  include <QtCore/qatomic_bootstrap.h>
      49             : 
      50             : // Compiler dependent implementation
      51             : #elif defined(Q_CC_MSVC)
      52             : #  include <QtCore/qatomic_msvc.h>
      53             : 
      54             : // Processor dependent implementation
      55             : #elif defined(Q_PROCESSOR_ARM_V7) && defined(Q_PROCESSOR_ARM_32)
      56             : # include "QtCore/qatomic_armv7.h"
      57             : #elif defined(Q_PROCESSOR_ARM_V6) && defined(Q_PROCESSOR_ARM_32)
      58             : # include "QtCore/qatomic_armv6.h"
      59             : #elif defined(Q_PROCESSOR_ARM_V5) && defined(Q_PROCESSOR_ARM_32)
      60             : # include "QtCore/qatomic_armv5.h"
      61             : #elif defined(Q_PROCESSOR_IA64)
      62             : #  include "QtCore/qatomic_ia64.h"
      63             : #elif defined(Q_PROCESSOR_MIPS)
      64             : #  include "QtCore/qatomic_mips.h"
      65             : #elif defined(Q_PROCESSOR_X86)
      66             : #  include <QtCore/qatomic_x86.h>
      67             : 
      68             : // Fallback compiler dependent implementation
      69             : #elif defined(Q_COMPILER_ATOMICS) && defined(Q_COMPILER_CONSTEXPR)
      70             : #  include <QtCore/qatomic_cxx11.h>
      71             : #elif defined(Q_CC_GNU)
      72             : #  include <QtCore/qatomic_gcc.h>
      73             : 
      74             : // Fallback operating system dependent implementation
      75             : #elif defined(Q_OS_UNIX)
      76             : #  include <QtCore/qatomic_unix.h>
      77             : 
      78             : // No fallback
      79             : #else
      80             : #  error "Qt has not been ported to this platform"
      81             : #endif
      82             : 
      83             : QT_BEGIN_NAMESPACE
      84             : 
      85             : #if 0
      86             : // silence syncqt warnings
      87             : QT_END_NAMESPACE
      88             : #pragma qt_no_master_include
      89             : #pragma qt_sync_stop_processing
      90             : #endif
      91             : 
      92             : // New atomics
      93             : 
      94             : #if defined(Q_COMPILER_CONSTEXPR) && defined(Q_COMPILER_DEFAULT_MEMBERS) && defined(Q_COMPILER_DELETE_MEMBERS)
      95             : # if defined(Q_CC_CLANG) && ((((__clang_major__ * 100) + __clang_minor__) < 303) \
      96             :                              || defined(__apple_build_version__) \
      97             :                             )
      98             :    /* Do not define QT_BASIC_ATOMIC_HAS_CONSTRUCTORS for "stock" clang before version 3.3.
      99             :       Apple's version has different (higher!) version numbers, so disable it for all of them for now.
     100             :       (The only way to distinguish between them seems to be a check for __apple_build_version__ .)
     101             : 
     102             :       For details about the bug: see http://llvm.org/bugs/show_bug.cgi?id=12670
     103             :     */
     104             : # else
     105             : #  define QT_BASIC_ATOMIC_HAS_CONSTRUCTORS
     106             : # endif
     107             : #endif
     108             : 
     109             : template <typename T>
     110             : class QBasicAtomicInteger
     111             : {
     112             : public:
     113             :     typedef QAtomicOps<T> Ops;
     114             :     // static check that this is a valid integer
     115             :     Q_STATIC_ASSERT_X(QTypeInfo<T>::isIntegral, "template parameter is not an integral type");
     116             :     Q_STATIC_ASSERT_X(QAtomicOpsSupport<sizeof(T)>::IsSupported, "template parameter is an integral of a size not supported on this platform");
     117             : 
     118             :     typename Ops::Type _q_value;
     119             : 
     120             :     // Everything below is either implemented in ../arch/qatomic_XXX.h or (as fallback) in qgenericatomic.h
     121             : 
     122        2340 :     T load() const Q_DECL_NOTHROW { return Ops::load(_q_value); }
     123             :     void store(T newValue) Q_DECL_NOTHROW { Ops::store(_q_value, newValue); }
     124             : 
     125             :     T loadAcquire() const Q_DECL_NOTHROW { return Ops::loadAcquire(_q_value); }
     126             :     void storeRelease(T newValue) Q_DECL_NOTHROW { Ops::storeRelease(_q_value, newValue); }
     127             :     operator T() const Q_DECL_NOTHROW { return loadAcquire(); }
     128             :     T operator=(T newValue) Q_DECL_NOTHROW { storeRelease(newValue); return newValue; }
     129             : 
     130             :     static Q_DECL_CONSTEXPR bool isReferenceCountingNative() Q_DECL_NOTHROW { return Ops::isReferenceCountingNative(); }
     131             :     static Q_DECL_CONSTEXPR bool isReferenceCountingWaitFree() Q_DECL_NOTHROW { return Ops::isReferenceCountingWaitFree(); }
     132             : 
     133         132 :     bool ref() Q_DECL_NOTHROW { return Ops::ref(_q_value); }
     134         349 :     bool deref() Q_DECL_NOTHROW { return Ops::deref(_q_value); }
     135             : 
     136             :     static Q_DECL_CONSTEXPR bool isTestAndSetNative() Q_DECL_NOTHROW { return Ops::isTestAndSetNative(); }
     137             :     static Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() Q_DECL_NOTHROW { return Ops::isTestAndSetWaitFree(); }
     138             : 
     139             :     bool testAndSetRelaxed(T expectedValue, T newValue) Q_DECL_NOTHROW
     140             :     { return Ops::testAndSetRelaxed(_q_value, expectedValue, newValue); }
     141             :     bool testAndSetAcquire(T expectedValue, T newValue) Q_DECL_NOTHROW
     142             :     { return Ops::testAndSetAcquire(_q_value, expectedValue, newValue); }
     143             :     bool testAndSetRelease(T expectedValue, T newValue) Q_DECL_NOTHROW
     144             :     { return Ops::testAndSetRelease(_q_value, expectedValue, newValue); }
     145             :     bool testAndSetOrdered(T expectedValue, T newValue) Q_DECL_NOTHROW
     146             :     { return Ops::testAndSetOrdered(_q_value, expectedValue, newValue); }
     147             : 
     148             :     bool testAndSetRelaxed(T expectedValue, T newValue, T &currentValue) Q_DECL_NOTHROW
     149             :     { return Ops::testAndSetRelaxed(_q_value, expectedValue, newValue, &currentValue); }
     150             :     bool testAndSetAcquire(T expectedValue, T newValue, T &currentValue) Q_DECL_NOTHROW
     151             :     { return Ops::testAndSetAcquire(_q_value, expectedValue, newValue, &currentValue); }
     152             :     bool testAndSetRelease(T expectedValue, T newValue, T &currentValue) Q_DECL_NOTHROW
     153             :     { return Ops::testAndSetRelease(_q_value, expectedValue, newValue, &currentValue); }
     154             :     bool testAndSetOrdered(T expectedValue, T newValue, T &currentValue) Q_DECL_NOTHROW
     155             :     { return Ops::testAndSetOrdered(_q_value, expectedValue, newValue, &currentValue); }
     156             : 
     157             :     static Q_DECL_CONSTEXPR bool isFetchAndStoreNative() Q_DECL_NOTHROW { return Ops::isFetchAndStoreNative(); }
     158             :     static Q_DECL_CONSTEXPR bool isFetchAndStoreWaitFree() Q_DECL_NOTHROW { return Ops::isFetchAndStoreWaitFree(); }
     159             : 
     160             :     T fetchAndStoreRelaxed(T newValue) Q_DECL_NOTHROW
     161             :     { return Ops::fetchAndStoreRelaxed(_q_value, newValue); }
     162             :     T fetchAndStoreAcquire(T newValue) Q_DECL_NOTHROW
     163             :     { return Ops::fetchAndStoreAcquire(_q_value, newValue); }
     164             :     T fetchAndStoreRelease(T newValue) Q_DECL_NOTHROW
     165             :     { return Ops::fetchAndStoreRelease(_q_value, newValue); }
     166             :     T fetchAndStoreOrdered(T newValue) Q_DECL_NOTHROW
     167             :     { return Ops::fetchAndStoreOrdered(_q_value, newValue); }
     168             : 
     169             :     static Q_DECL_CONSTEXPR bool isFetchAndAddNative() Q_DECL_NOTHROW { return Ops::isFetchAndAddNative(); }
     170             :     static Q_DECL_CONSTEXPR bool isFetchAndAddWaitFree() Q_DECL_NOTHROW { return Ops::isFetchAndAddWaitFree(); }
     171             : 
     172             :     T fetchAndAddRelaxed(T valueToAdd) Q_DECL_NOTHROW
     173             :     { return Ops::fetchAndAddRelaxed(_q_value, valueToAdd); }
     174             :     T fetchAndAddAcquire(T valueToAdd) Q_DECL_NOTHROW
     175             :     { return Ops::fetchAndAddAcquire(_q_value, valueToAdd); }
     176             :     T fetchAndAddRelease(T valueToAdd) Q_DECL_NOTHROW
     177             :     { return Ops::fetchAndAddRelease(_q_value, valueToAdd); }
     178             :     T fetchAndAddOrdered(T valueToAdd) Q_DECL_NOTHROW
     179             :     { return Ops::fetchAndAddOrdered(_q_value, valueToAdd); }
     180             : 
     181             :     T fetchAndSubRelaxed(T valueToAdd) Q_DECL_NOTHROW
     182             :     { return Ops::fetchAndSubRelaxed(_q_value, valueToAdd); }
     183             :     T fetchAndSubAcquire(T valueToAdd) Q_DECL_NOTHROW
     184             :     { return Ops::fetchAndSubAcquire(_q_value, valueToAdd); }
     185             :     T fetchAndSubRelease(T valueToAdd) Q_DECL_NOTHROW
     186             :     { return Ops::fetchAndSubRelease(_q_value, valueToAdd); }
     187             :     T fetchAndSubOrdered(T valueToAdd) Q_DECL_NOTHROW
     188             :     { return Ops::fetchAndSubOrdered(_q_value, valueToAdd); }
     189             : 
     190             :     T fetchAndAndRelaxed(T valueToAdd) Q_DECL_NOTHROW
     191             :     { return Ops::fetchAndAndRelaxed(_q_value, valueToAdd); }
     192             :     T fetchAndAndAcquire(T valueToAdd) Q_DECL_NOTHROW
     193             :     { return Ops::fetchAndAndAcquire(_q_value, valueToAdd); }
     194             :     T fetchAndAndRelease(T valueToAdd) Q_DECL_NOTHROW
     195             :     { return Ops::fetchAndAndRelease(_q_value, valueToAdd); }
     196             :     T fetchAndAndOrdered(T valueToAdd) Q_DECL_NOTHROW
     197             :     { return Ops::fetchAndAndOrdered(_q_value, valueToAdd); }
     198             : 
     199             :     T fetchAndOrRelaxed(T valueToAdd) Q_DECL_NOTHROW
     200             :     { return Ops::fetchAndOrRelaxed(_q_value, valueToAdd); }
     201             :     T fetchAndOrAcquire(T valueToAdd) Q_DECL_NOTHROW
     202             :     { return Ops::fetchAndOrAcquire(_q_value, valueToAdd); }
     203             :     T fetchAndOrRelease(T valueToAdd) Q_DECL_NOTHROW
     204             :     { return Ops::fetchAndOrRelease(_q_value, valueToAdd); }
     205             :     T fetchAndOrOrdered(T valueToAdd) Q_DECL_NOTHROW
     206             :     { return Ops::fetchAndOrOrdered(_q_value, valueToAdd); }
     207             : 
     208             :     T fetchAndXorRelaxed(T valueToAdd) Q_DECL_NOTHROW
     209             :     { return Ops::fetchAndXorRelaxed(_q_value, valueToAdd); }
     210             :     T fetchAndXorAcquire(T valueToAdd) Q_DECL_NOTHROW
     211             :     { return Ops::fetchAndXorAcquire(_q_value, valueToAdd); }
     212             :     T fetchAndXorRelease(T valueToAdd) Q_DECL_NOTHROW
     213             :     { return Ops::fetchAndXorRelease(_q_value, valueToAdd); }
     214             :     T fetchAndXorOrdered(T valueToAdd) Q_DECL_NOTHROW
     215             :     { return Ops::fetchAndXorOrdered(_q_value, valueToAdd); }
     216             : 
     217             :     T operator++() Q_DECL_NOTHROW
     218             :     { return fetchAndAddOrdered(1) + 1; }
     219             :     T operator++(int) Q_DECL_NOTHROW
     220             :     { return fetchAndAddOrdered(1); }
     221             :     T operator--() Q_DECL_NOTHROW
     222             :     { return fetchAndSubOrdered(1) - 1; }
     223             :     T operator--(int) Q_DECL_NOTHROW
     224             :     { return fetchAndSubOrdered(1); }
     225             : 
     226             :     T operator+=(T v) Q_DECL_NOTHROW
     227             :     { return fetchAndAddOrdered(v) + v; }
     228             :     T operator-=(T v) Q_DECL_NOTHROW
     229             :     { return fetchAndSubOrdered(v) - v; }
     230             :     T operator&=(T v) Q_DECL_NOTHROW
     231             :     { return fetchAndAndOrdered(v) & v; }
     232             :     T operator|=(T v) Q_DECL_NOTHROW
     233             :     { return fetchAndOrOrdered(v) | v; }
     234             :     T operator^=(T v) Q_DECL_NOTHROW
     235             :     { return fetchAndXorOrdered(v) ^ v; }
     236             : 
     237             : 
     238             : #ifdef QT_BASIC_ATOMIC_HAS_CONSTRUCTORS
     239             :     QBasicAtomicInteger() = default;
     240          78 :     constexpr QBasicAtomicInteger(T value) Q_DECL_NOTHROW : _q_value(value) {}
     241             :     QBasicAtomicInteger(const QBasicAtomicInteger &) = delete;
     242             :     QBasicAtomicInteger &operator=(const QBasicAtomicInteger &) = delete;
     243             :     QBasicAtomicInteger &operator=(const QBasicAtomicInteger &) volatile = delete;
     244             : #endif
     245             : };
     246             : typedef QBasicAtomicInteger<int> QBasicAtomicInt;
     247             : 
     248             : template <typename X>
     249             : class QBasicAtomicPointer
     250             : {
     251             : public:
     252             :     typedef X *Type;
     253             :     typedef QAtomicOps<Type> Ops;
     254             :     typedef typename Ops::Type AtomicType;
     255             : 
     256             :     AtomicType _q_value;
     257             : 
     258             :     Type load() const Q_DECL_NOTHROW { return _q_value; }
     259             :     void store(Type newValue) Q_DECL_NOTHROW { _q_value = newValue; }
     260             :     operator Type() const Q_DECL_NOTHROW { return loadAcquire(); }
     261             :     Type operator=(Type newValue) Q_DECL_NOTHROW { storeRelease(newValue); return newValue; }
     262             : 
     263             :     // Atomic API, implemented in qatomic_XXX.h
     264             :     Type loadAcquire() const Q_DECL_NOTHROW { return Ops::loadAcquire(_q_value); }
     265             :     void storeRelease(Type newValue) Q_DECL_NOTHROW { Ops::storeRelease(_q_value, newValue); }
     266             : 
     267             :     static Q_DECL_CONSTEXPR bool isTestAndSetNative() Q_DECL_NOTHROW { return Ops::isTestAndSetNative(); }
     268             :     static Q_DECL_CONSTEXPR bool isTestAndSetWaitFree() Q_DECL_NOTHROW { return Ops::isTestAndSetWaitFree(); }
     269             : 
     270             :     bool testAndSetRelaxed(Type expectedValue, Type newValue) Q_DECL_NOTHROW
     271             :     { return Ops::testAndSetRelaxed(_q_value, expectedValue, newValue); }
     272             :     bool testAndSetAcquire(Type expectedValue, Type newValue) Q_DECL_NOTHROW
     273             :     { return Ops::testAndSetAcquire(_q_value, expectedValue, newValue); }
     274             :     bool testAndSetRelease(Type expectedValue, Type newValue) Q_DECL_NOTHROW
     275             :     { return Ops::testAndSetRelease(_q_value, expectedValue, newValue); }
     276             :     bool testAndSetOrdered(Type expectedValue, Type newValue) Q_DECL_NOTHROW
     277             :     { return Ops::testAndSetOrdered(_q_value, expectedValue, newValue); }
     278             : 
     279             :     bool testAndSetRelaxed(Type expectedValue, Type newValue, Type &currentValue) Q_DECL_NOTHROW
     280             :     { return Ops::testAndSetRelaxed(_q_value, expectedValue, newValue, &currentValue); }
     281             :     bool testAndSetAcquire(Type expectedValue, Type newValue, Type &currentValue) Q_DECL_NOTHROW
     282             :     { return Ops::testAndSetAcquire(_q_value, expectedValue, newValue, &currentValue); }
     283             :     bool testAndSetRelease(Type expectedValue, Type newValue, Type &currentValue) Q_DECL_NOTHROW
     284             :     { return Ops::testAndSetRelease(_q_value, expectedValue, newValue, &currentValue); }
     285             :     bool testAndSetOrdered(Type expectedValue, Type newValue, Type &currentValue) Q_DECL_NOTHROW
     286             :     { return Ops::testAndSetOrdered(_q_value, expectedValue, newValue, &currentValue); }
     287             : 
     288             :     static Q_DECL_CONSTEXPR bool isFetchAndStoreNative() Q_DECL_NOTHROW { return Ops::isFetchAndStoreNative(); }
     289             :     static Q_DECL_CONSTEXPR bool isFetchAndStoreWaitFree() Q_DECL_NOTHROW { return Ops::isFetchAndStoreWaitFree(); }
     290             : 
     291             :     Type fetchAndStoreRelaxed(Type newValue) Q_DECL_NOTHROW
     292             :     { return Ops::fetchAndStoreRelaxed(_q_value, newValue); }
     293             :     Type fetchAndStoreAcquire(Type newValue) Q_DECL_NOTHROW
     294             :     { return Ops::fetchAndStoreAcquire(_q_value, newValue); }
     295             :     Type fetchAndStoreRelease(Type newValue) Q_DECL_NOTHROW
     296             :     { return Ops::fetchAndStoreRelease(_q_value, newValue); }
     297             :     Type fetchAndStoreOrdered(Type newValue) Q_DECL_NOTHROW
     298             :     { return Ops::fetchAndStoreOrdered(_q_value, newValue); }
     299             : 
     300             :     static Q_DECL_CONSTEXPR bool isFetchAndAddNative() Q_DECL_NOTHROW { return Ops::isFetchAndAddNative(); }
     301             :     static Q_DECL_CONSTEXPR bool isFetchAndAddWaitFree() Q_DECL_NOTHROW { return Ops::isFetchAndAddWaitFree(); }
     302             : 
     303             :     Type fetchAndAddRelaxed(qptrdiff valueToAdd) Q_DECL_NOTHROW
     304             :     { return Ops::fetchAndAddRelaxed(_q_value, valueToAdd); }
     305             :     Type fetchAndAddAcquire(qptrdiff valueToAdd) Q_DECL_NOTHROW
     306             :     { return Ops::fetchAndAddAcquire(_q_value, valueToAdd); }
     307             :     Type fetchAndAddRelease(qptrdiff valueToAdd) Q_DECL_NOTHROW
     308             :     { return Ops::fetchAndAddRelease(_q_value, valueToAdd); }
     309             :     Type fetchAndAddOrdered(qptrdiff valueToAdd) Q_DECL_NOTHROW
     310             :     { return Ops::fetchAndAddOrdered(_q_value, valueToAdd); }
     311             : 
     312             :     Type fetchAndSubRelaxed(qptrdiff valueToAdd) Q_DECL_NOTHROW
     313             :     { return Ops::fetchAndSubRelaxed(_q_value, valueToAdd); }
     314             :     Type fetchAndSubAcquire(qptrdiff valueToAdd) Q_DECL_NOTHROW
     315             :     { return Ops::fetchAndSubAcquire(_q_value, valueToAdd); }
     316             :     Type fetchAndSubRelease(qptrdiff valueToAdd) Q_DECL_NOTHROW
     317             :     { return Ops::fetchAndSubRelease(_q_value, valueToAdd); }
     318             :     Type fetchAndSubOrdered(qptrdiff valueToAdd) Q_DECL_NOTHROW
     319             :     { return Ops::fetchAndSubOrdered(_q_value, valueToAdd); }
     320             : 
     321             :     Type operator++() Q_DECL_NOTHROW
     322             :     { return fetchAndAddOrdered(1) + 1; }
     323             :     Type operator++(int) Q_DECL_NOTHROW
     324             :     { return fetchAndAddOrdered(1); }
     325             :     Type operator--() Q_DECL_NOTHROW
     326             :     { return fetchAndSubOrdered(1) - 1; }
     327             :     Type operator--(int) Q_DECL_NOTHROW
     328             :     { return fetchAndSubOrdered(1); }
     329             :     Type operator+=(qptrdiff valueToAdd) Q_DECL_NOTHROW
     330             :     { return fetchAndAddOrdered(valueToAdd) + valueToAdd; }
     331             :     Type operator-=(qptrdiff valueToSub) Q_DECL_NOTHROW
     332             :     { return fetchAndSubOrdered(valueToSub) - valueToSub; }
     333             : 
     334             : #ifdef QT_BASIC_ATOMIC_HAS_CONSTRUCTORS
     335             :     QBasicAtomicPointer() = default;
     336             :     constexpr QBasicAtomicPointer(Type value) Q_DECL_NOTHROW : _q_value(value) {}
     337             :     QBasicAtomicPointer(const QBasicAtomicPointer &) = delete;
     338             :     QBasicAtomicPointer &operator=(const QBasicAtomicPointer &) = delete;
     339             :     QBasicAtomicPointer &operator=(const QBasicAtomicPointer &) volatile = delete;
     340             : #endif
     341             : };
     342             : 
     343             : #ifndef Q_BASIC_ATOMIC_INITIALIZER
     344             : #  define Q_BASIC_ATOMIC_INITIALIZER(a) { (a) }
     345             : #endif
     346             : 
     347             : QT_END_NAMESPACE
     348             : 
     349             : #endif // QBASICATOMIC_H

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