tests/auto/qatomicpointer/tst_qatomicpointer.cpp
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/auto/qatomicpointer/tst_qatomicpointer.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,675 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the test suite 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include <QtTest/QtTest>
+
+#include <qatomic.h>
+
+#include <limits.h>
+
+//TESTED_CLASS=
+//TESTED_FILES=
+
+class tst_QAtomicPointer : public QObject
+{
+    Q_OBJECT
+
+public:
+    tst_QAtomicPointer();
+    ~tst_QAtomicPointer();
+
+private slots:
+    void warningFree();
+
+    void constructor();
+    void copy_constructor();
+    void equality_operator();
+    void inequality_operator();
+    void assignment_operator();
+    void star_operator();
+    void dereference_operator();
+
+    void isTestAndSetNative();
+    void isTestAndSetWaitFree();
+    void testAndSet();
+
+    void isFetchAndStoreNative();
+    void isFetchAndStoreWaitFree();
+    void fetchAndStore();
+
+    void isFetchAndAddNative();
+    void isFetchAndAddWaitFree();
+    void fetchAndAdd_data();
+    void fetchAndAdd();
+
+private:
+    static void warningFreeHelper();
+};
+
+tst_QAtomicPointer::tst_QAtomicPointer()
+{ }
+
+tst_QAtomicPointer::~tst_QAtomicPointer()
+{ }
+
+struct WFHC
+{
+    void bar() {}
+};
+
+void tst_QAtomicPointer::warningFreeHelper()
+{
+    Q_ASSERT(false);
+    // The code below is bogus, and shouldn't be run. We're looking for warnings, only.
+
+    QBasicAtomicPointer<WFHC> p = Q_BASIC_ATOMIC_INITIALIZER(0);
+
+    p->bar();
+
+    WFHC *expectedValue = 0;
+    WFHC *newValue = 0;
+    qptrdiff valueToAdd = 0;
+
+    p.testAndSetRelaxed(expectedValue, newValue);
+    p.testAndSetAcquire(expectedValue, newValue);
+    p.testAndSetRelease(expectedValue, newValue);
+    p.testAndSetOrdered(expectedValue, newValue);
+
+    p.fetchAndStoreRelaxed(newValue);
+    p.fetchAndStoreAcquire(newValue);
+    p.fetchAndStoreRelease(newValue);
+    p.fetchAndStoreOrdered(newValue);
+
+    p.fetchAndAddRelaxed(valueToAdd);
+    p.fetchAndAddAcquire(valueToAdd);
+    p.fetchAndAddRelease(valueToAdd);
+    p.fetchAndAddOrdered(valueToAdd);
+}
+
+void tst_QAtomicPointer::warningFree()
+{
+    // This is a compile time check for warnings.
+    // No need for actual work here.
+
+    void (*foo)() = &warningFreeHelper;
+    (void)foo;
+}
+
+void tst_QAtomicPointer::constructor()
+{
+    void *one = this;
+    QAtomicPointer<void> atomic1 = one;
+    QVERIFY(atomic1 == one);
+
+    void *two = &one;
+    QAtomicPointer<void> atomic2 = two;
+    QVERIFY(atomic2 == two);
+
+    void *three = &two;
+    QAtomicPointer<void> atomic3 = three;
+    QVERIFY(atomic3 == three);
+}
+
+void tst_QAtomicPointer::copy_constructor()
+{
+    void *one = this;
+    QAtomicPointer<void> atomic1 = one;
+    QAtomicPointer<void> atomic1_copy = atomic1;
+    QVERIFY(atomic1_copy == one);
+    QCOMPARE(atomic1_copy, atomic1);
+
+    void *two = &one;
+    QAtomicPointer<void> atomic2 = two;
+    QAtomicPointer<void> atomic2_copy = atomic2;
+    QVERIFY(atomic2_copy == two);
+    QCOMPARE(atomic2_copy, atomic2);
+
+    void *three = &two;
+    QAtomicPointer<void> atomic3 = three;
+    QAtomicPointer<void> atomic3_copy = atomic3;
+    QVERIFY(atomic3_copy == three);
+    QCOMPARE(atomic3_copy, atomic3);
+}
+
+void tst_QAtomicPointer::equality_operator()
+{
+    void *one = this;
+    void *two = &one;
+    void *three = &two;
+
+    QAtomicPointer<void> atomic1 = one;
+    QAtomicPointer<void> atomic2 = two;
+    QAtomicPointer<void> atomic3 = three;
+
+    QVERIFY(atomic1 == one);
+    QVERIFY(!(atomic1 == two));
+    QVERIFY(!(atomic1 == three));
+
+    QVERIFY(!(atomic2 == one));
+    QVERIFY(atomic2 == two);
+    QVERIFY(!(atomic2 == three));
+
+    QVERIFY(!(atomic3 == one));
+    QVERIFY(!(atomic3 == two));
+    QVERIFY(atomic3 == three);
+}
+
+void tst_QAtomicPointer::inequality_operator()
+{
+    void *one = this;
+    void *two = &one;
+    void *three = &two;
+
+    QAtomicPointer<void> atomic1 = one;
+    QAtomicPointer<void> atomic2 = two;
+    QAtomicPointer<void> atomic3 = three;
+
+    QVERIFY(!(atomic1 != one));
+    QVERIFY(atomic1 != two);
+    QVERIFY(atomic1 != three);
+
+    QVERIFY(atomic2 != one);
+    QVERIFY(!(atomic2 != two));
+    QVERIFY(atomic2 != three);
+
+    QVERIFY(atomic3 != one);
+    QVERIFY(atomic3 != two);
+    QVERIFY(!(atomic3 != three));
+}
+
+void tst_QAtomicPointer::assignment_operator()
+{
+    void *one = this;
+    void *two = &one;
+    void *three = &two;
+
+    QAtomicPointer<void> atomic1 = one;
+    QAtomicPointer<void> atomic2 = two;
+    QAtomicPointer<void> atomic3 = three;
+
+    QVERIFY(atomic1 == one);
+    QVERIFY(atomic2 == two);
+    QVERIFY(atomic3 == three);
+
+    atomic1 = two;
+    atomic2 = three;
+    atomic3 = one;
+
+    QVERIFY(atomic1 == two);
+    QVERIFY(atomic2 == three);
+    QVERIFY(atomic3 == one);
+}
+
+struct Type
+{
+    inline const Type *self() const
+    { return this; }
+};
+
+void tst_QAtomicPointer::star_operator()
+{
+    Type t;
+    QAtomicPointer<Type> p = &t;
+    QCOMPARE((*p).self(), t.self());
+}
+
+void tst_QAtomicPointer::dereference_operator()
+{
+    Type t;
+    QAtomicPointer<Type> p = &t;
+    QCOMPARE(p->self(), t.self());
+}
+
+void tst_QAtomicPointer::isTestAndSetNative()
+{
+#if defined(Q_ATOMIC_POINTER_TEST_AND_SET_IS_ALWAYS_NATIVE)
+    // the runtime test should say the same thing
+    QVERIFY(QAtomicPointer<void>::isTestAndSetNative());
+
+#  if (defined(Q_ATOMIC_POINTER_TEST_AND_SET_IS_SOMETIMES_NATIVE)     \
+       || defined(Q_ATOMIC_POINTER_TEST_AND_SET_IS_NOT_NATIVE))
+#    error "Define only one of Q_ATOMIC_POINTER_TEST_AND_SET_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE"
+#  endif
+#elif defined(Q_ATOMIC_POINTER_TEST_AND_SET_IS_SOMETIMES_NATIVE)
+    // could be either, just want to make sure the function is implemented
+    QVERIFY(QAtomicPointer<void>::isTestAndSetNative()
+            || !QAtomicPointer<void>::isTestAndSetNative());
+
+#  if (defined(Q_ATOMIC_POINTER_TEST_AND_SET_IS_ALWAYS_NATIVE) \
+       || defined(Q_ATOMIC_POINTER_TEST_AND_SET_IS_NOT_NATIVE))
+#    error "Define only one of Q_ATOMIC_POINTER_TEST_AND_SET_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE"
+#  endif
+#elif defined(Q_ATOMIC_POINTER_TEST_AND_SET_IS_NOT_NATIVE)
+    // the runtime test should say the same thing
+    QVERIFY(!QAtomicPointer<void>::isTestAndSetNative());
+
+#  if (defined(Q_ATOMIC_POINTER_TEST_AND_SET_IS_ALWAYS_NATIVE) \
+       || defined(Q_ATOMIC_POINTER_TEST_AND_SET_IS_SOMETIMES_NATIVE))
+#    error "Define only one of Q_ATOMIC_POINTER_TEST_AND_SET_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE"
+#  endif
+#else
+#  error "Q_ATOMIC_POINTER_TEST_AND_SET_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE is not defined"
+#endif
+}
+
+void tst_QAtomicPointer::isTestAndSetWaitFree()
+{
+#if defined(Q_ATOMIC_POINTER_TEST_AND_SET_IS_WAIT_FREE)
+    // the runtime test should say the same thing
+    QVERIFY(QAtomicPointer<void>::isTestAndSetWaitFree());
+
+    // enforce some invariants
+    QVERIFY(QAtomicPointer<void>::isTestAndSetNative());
+#  if defined(Q_ATOMIC_POINTER_TEST_AND_SET_IS_NOT_NATIVE)
+#    error "Reference counting cannot be wait-free and unsupported at the same time!"
+#  endif
+#else
+    // the runtime test should say the same thing
+    QVERIFY(!QAtomicPointer<void>::isTestAndSetWaitFree());
+#endif
+}
+
+void tst_QAtomicPointer::testAndSet()
+{
+    void *one = this;
+    void *two = &one;
+    void *three = &two;
+
+    {
+        QAtomicPointer<void> atomic1 = one;
+        QAtomicPointer<void> atomic2 = two;
+        QAtomicPointer<void> atomic3 = three;
+
+        QVERIFY(atomic1 == one);
+        QVERIFY(atomic2 == two);
+        QVERIFY(atomic3 == three);
+
+        QVERIFY(atomic1.testAndSetRelaxed(one, two));
+        QVERIFY(atomic2.testAndSetRelaxed(two, three));
+        QVERIFY(atomic3.testAndSetRelaxed(three, one));
+
+        QVERIFY(atomic1 == two);
+        QVERIFY(atomic2 == three);
+        QVERIFY(atomic3 == one);
+    }
+
+    {
+        QAtomicPointer<void> atomic1 = one;
+        QAtomicPointer<void> atomic2 = two;
+        QAtomicPointer<void> atomic3 = three;
+
+        QVERIFY(atomic1 == one);
+        QVERIFY(atomic2 == two);
+        QVERIFY(atomic3 == three);
+
+        QVERIFY(atomic1.testAndSetAcquire(one, two));
+        QVERIFY(atomic2.testAndSetAcquire(two, three));
+        QVERIFY(atomic3.testAndSetAcquire(three, one));
+
+        QVERIFY(atomic1 == two);
+        QVERIFY(atomic2 == three);
+        QVERIFY(atomic3 == one);
+    }
+
+    {
+        QAtomicPointer<void> atomic1 = one;
+        QAtomicPointer<void> atomic2 = two;
+        QAtomicPointer<void> atomic3 = three;
+
+        QVERIFY(atomic1 == one);
+        QVERIFY(atomic2 == two);
+        QVERIFY(atomic3 == three);
+
+        QVERIFY(atomic1.testAndSetRelease(one, two));
+        QVERIFY(atomic2.testAndSetRelease(two, three));
+        QVERIFY(atomic3.testAndSetRelease(three, one));
+
+        QVERIFY(atomic1 == two);
+        QVERIFY(atomic2 == three);
+        QVERIFY(atomic3 == one);
+    }
+
+    {
+        QAtomicPointer<void> atomic1 = one;
+        QAtomicPointer<void> atomic2 = two;
+        QAtomicPointer<void> atomic3 = three;
+
+        QVERIFY(atomic1 == one);
+        QVERIFY(atomic2 == two);
+        QVERIFY(atomic3 == three);
+
+        QVERIFY(atomic1.testAndSetOrdered(one, two));
+        QVERIFY(atomic2.testAndSetOrdered(two, three));
+        QVERIFY(atomic3.testAndSetOrdered(three, one));
+
+        QVERIFY(atomic1 == two);
+        QVERIFY(atomic2 == three);
+        QVERIFY(atomic3 == one);
+    }
+}
+
+void tst_QAtomicPointer::isFetchAndStoreNative()
+{
+#if defined(Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_ALWAYS_NATIVE)
+    // the runtime test should say the same thing
+    QVERIFY(QAtomicPointer<void>::isFetchAndStoreNative());
+
+#  if (defined(Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_SOMETIMES_NATIVE)     \
+       || defined(Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_NOT_NATIVE))
+#    error "Define only one of Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE"
+#  endif
+#elif defined(Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_SOMETIMES_NATIVE)
+    // could be either, just want to make sure the function is implemented
+    QVERIFY(QAtomicPointer<void>::isFetchAndStoreNative()
+            || !QAtomicPointer<void>::isFetchAndStoreNative());
+
+#  if (defined(Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_ALWAYS_NATIVE) \
+       || defined(Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_NOT_NATIVE))
+#    error "Define only one of Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE"
+#  endif
+#elif defined(Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_NOT_NATIVE)
+    // the runtime test should say the same thing
+    QVERIFY(!QAtomicPointer<void>::isFetchAndStoreNative());
+
+#  if (defined(Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_ALWAYS_NATIVE) \
+       || defined(Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_SOMETIMES_NATIVE))
+#    error "Define only one of Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE"
+#  endif
+#else
+#  error "Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE is not defined"
+#endif
+}
+
+void tst_QAtomicPointer::isFetchAndStoreWaitFree()
+{
+#if defined(Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_WAIT_FREE)
+    // the runtime test should say the same thing
+    QVERIFY(QAtomicPointer<void>::isFetchAndStoreWaitFree());
+
+    // enforce some invariants
+    QVERIFY(QAtomicPointer<void>::isFetchAndStoreNative());
+#  if defined(Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_NOT_NATIVE)
+#    error "Reference counting cannot be wait-free and unsupported at the same time!"
+#  endif
+#else
+    // the runtime test should say the same thing
+    QVERIFY(!QAtomicPointer<void>::isFetchAndStoreWaitFree());
+#endif
+}
+
+void tst_QAtomicPointer::fetchAndStore()
+{
+    void *one = this;
+    void *two = &one;
+    void *three = &two;
+
+    {
+        QAtomicPointer<void> atomic1 = one;
+        QAtomicPointer<void> atomic2 = two;
+        QAtomicPointer<void> atomic3 = three;
+
+        QVERIFY(atomic1 == one);
+        QVERIFY(atomic2 == two);
+        QVERIFY(atomic3 == three);
+
+        QCOMPARE(atomic1.fetchAndStoreRelaxed(two), one);
+        QCOMPARE(atomic2.fetchAndStoreRelaxed(three), two);
+        QCOMPARE(atomic3.fetchAndStoreRelaxed(one), three);
+
+        QVERIFY(atomic1 == two);
+        QVERIFY(atomic2 == three);
+        QVERIFY(atomic3 == one);
+    }
+
+    {
+        QAtomicPointer<void> atomic1 = one;
+        QAtomicPointer<void> atomic2 = two;
+        QAtomicPointer<void> atomic3 = three;
+
+        QVERIFY(atomic1 == one);
+        QVERIFY(atomic2 == two);
+        QVERIFY(atomic3 == three);
+
+        QCOMPARE(atomic1.fetchAndStoreAcquire(two), one);
+        QCOMPARE(atomic2.fetchAndStoreAcquire(three), two);
+        QCOMPARE(atomic3.fetchAndStoreAcquire(one), three);
+
+        QVERIFY(atomic1 == two);
+        QVERIFY(atomic2 == three);
+        QVERIFY(atomic3 == one);
+    }
+
+    {
+        QAtomicPointer<void> atomic1 = one;
+        QAtomicPointer<void> atomic2 = two;
+        QAtomicPointer<void> atomic3 = three;
+
+        QVERIFY(atomic1 == one);
+        QVERIFY(atomic2 == two);
+        QVERIFY(atomic3 == three);
+
+        QCOMPARE(atomic1.fetchAndStoreRelease(two), one);
+        QCOMPARE(atomic2.fetchAndStoreRelease(three), two);
+        QCOMPARE(atomic3.fetchAndStoreRelease(one), three);
+
+        QVERIFY(atomic1 == two);
+        QVERIFY(atomic2 == three);
+        QVERIFY(atomic3 == one);
+    }
+
+    {
+        QAtomicPointer<void> atomic1 = one;
+        QAtomicPointer<void> atomic2 = two;
+        QAtomicPointer<void> atomic3 = three;
+
+        QVERIFY(atomic1 == one);
+        QVERIFY(atomic2 == two);
+        QVERIFY(atomic3 == three);
+
+        QCOMPARE(atomic1.fetchAndStoreOrdered(two), one);
+        QCOMPARE(atomic2.fetchAndStoreOrdered(three), two);
+        QCOMPARE(atomic3.fetchAndStoreOrdered(one), three);
+
+        QVERIFY(atomic1 == two);
+        QVERIFY(atomic2 == three);
+        QVERIFY(atomic3 == one);
+    }
+}
+
+void tst_QAtomicPointer::isFetchAndAddNative()
+{
+#if defined(Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_ALWAYS_NATIVE)
+    // the runtime test should say the same thing
+    QVERIFY(QAtomicPointer<void>::isFetchAndAddNative());
+
+#  if (defined(Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_SOMETIMES_NATIVE)     \
+       || defined(Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_NOT_NATIVE))
+#    error "Define only one of Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE"
+#  endif
+#elif defined(Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_SOMETIMES_NATIVE)
+    // could be either, just want to make sure the function is implemented
+    QVERIFY(QAtomicPointer<void>::isFetchAndAddNative()
+            || !QAtomicPointer<void>::isFetchAndAddNative());
+
+#  if (defined(Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_ALWAYS_NATIVE) \
+       || defined(Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_NOT_NATIVE))
+#    error "Define only one of Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE"
+#  endif
+#elif defined(Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_NOT_NATIVE)
+    // the runtime test should say the same thing
+    QVERIFY(!QAtomicPointer<void>::isFetchAndAddNative());
+
+#  if (defined(Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_ALWAYS_NATIVE) \
+       || defined(Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_SOMETIMES_NATIVE))
+#    error "Define only one of Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE"
+#  endif
+#else
+#  error "Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE is not defined"
+#endif
+}
+
+void tst_QAtomicPointer::isFetchAndAddWaitFree()
+{
+#if defined(Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_WAIT_FREE)
+    // the runtime test should say the same thing
+    QVERIFY(QAtomicPointer<void>::isFetchAndAddWaitFree());
+
+    // enforce some invariants
+    QVERIFY(QAtomicPointer<void>::isFetchAndAddNative());
+#  if defined(Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_NOT_NATIVE)
+#    error "Reference counting cannot be wait-free and unsupported at the same time!"
+#  endif
+#else
+    // the runtime test should say the same thing
+    QVERIFY(!QAtomicPointer<void>::isFetchAndAddWaitFree());
+#endif
+}
+
+void tst_QAtomicPointer::fetchAndAdd_data()
+{
+    QTest::addColumn<int>("valueToAdd");
+
+    QTest::newRow("0") << 0;
+    QTest::newRow("1") << 1;
+    QTest::newRow("2") << 2;
+    QTest::newRow("10") << 10;
+    QTest::newRow("31") << 31;
+    QTest::newRow("51") << 51;
+    QTest::newRow("72") << 72;
+    QTest::newRow("810") << 810;
+    QTest::newRow("631") << 631;
+    QTest::newRow("451") << 451;
+    QTest::newRow("272") << 272;
+    QTest::newRow("1810") << 1810;
+    QTest::newRow("3631") << 3631;
+    QTest::newRow("5451") << 5451;
+    QTest::newRow("7272") << 7272;
+    QTest::newRow("-1") << -1;
+    QTest::newRow("-2") << -2;
+    QTest::newRow("-10") << -10;
+    QTest::newRow("-31") << -31;
+    QTest::newRow("-51") << -51;
+    QTest::newRow("-72") << -72;
+    QTest::newRow("-810") << -810;
+    QTest::newRow("-631") << -631;
+    QTest::newRow("-451") << -451;
+    QTest::newRow("-272") << -272;
+    QTest::newRow("-1810") << -1810;
+    QTest::newRow("-3631") << -3631;
+    QTest::newRow("-5451") << -5451;
+    QTest::newRow("-7272") << -7272;
+}
+
+void tst_QAtomicPointer::fetchAndAdd()
+{
+    QFETCH(int, valueToAdd);
+
+    char c;
+    char *pc = &c;
+    short s;
+    short *ps = &s;
+    int i;
+    int *pi = &i;
+
+    {
+        QAtomicPointer<char> pointer1 = pc;
+        QCOMPARE(quintptr(pointer1.fetchAndAddRelaxed(valueToAdd)), quintptr(pc));
+        QCOMPARE(quintptr(pointer1.fetchAndAddRelaxed(-valueToAdd)), quintptr(pc + valueToAdd));
+        QCOMPARE(quintptr(static_cast<char *>(pointer1)), quintptr(pc));
+        QAtomicPointer<short> pointer2 = ps;
+        QCOMPARE(quintptr(pointer2.fetchAndAddRelaxed(valueToAdd)), quintptr(ps));
+        QCOMPARE(quintptr(pointer2.fetchAndAddRelaxed(-valueToAdd)), quintptr(ps + valueToAdd));
+        QCOMPARE(quintptr(static_cast<short *>(pointer2)), quintptr(ps));
+        QAtomicPointer<int> pointer3 = pi;
+        QCOMPARE(quintptr(pointer3.fetchAndAddRelaxed(valueToAdd)), quintptr(pi));
+        QCOMPARE(quintptr(pointer3.fetchAndAddRelaxed(-valueToAdd)), quintptr(pi + valueToAdd));
+        QCOMPARE(quintptr(static_cast<int *>(pointer3)), quintptr(pi));
+    }
+
+    {
+        QAtomicPointer<char> pointer1 = pc;
+        QCOMPARE(quintptr(pointer1.fetchAndAddAcquire(valueToAdd)), quintptr(pc));
+        QCOMPARE(quintptr(pointer1.fetchAndAddAcquire(-valueToAdd)), quintptr(pc + valueToAdd));
+        QCOMPARE(quintptr(static_cast<char *>(pointer1)), quintptr(pc));
+        QAtomicPointer<short> pointer2 = ps;
+        QCOMPARE(quintptr(pointer2.fetchAndAddAcquire(valueToAdd)), quintptr(ps));
+        QCOMPARE(quintptr(pointer2.fetchAndAddAcquire(-valueToAdd)), quintptr(ps + valueToAdd));
+        QCOMPARE(quintptr(static_cast<short *>(pointer2)), quintptr(ps));
+        QAtomicPointer<int> pointer3 = pi;
+        QCOMPARE(quintptr(pointer3.fetchAndAddAcquire(valueToAdd)), quintptr(pi));
+        QCOMPARE(quintptr(pointer3.fetchAndAddAcquire(-valueToAdd)), quintptr(pi + valueToAdd));
+        QCOMPARE(quintptr(static_cast<int *>(pointer3)), quintptr(pi));
+    }
+
+    {
+        QAtomicPointer<char> pointer1 = pc;
+        QCOMPARE(quintptr(pointer1.fetchAndAddRelease(valueToAdd)), quintptr(pc));
+        QCOMPARE(quintptr(pointer1.fetchAndAddRelease(-valueToAdd)), quintptr(pc + valueToAdd));
+        QCOMPARE(quintptr(static_cast<char *>(pointer1)), quintptr(pc));
+        QAtomicPointer<short> pointer2 = ps;
+        QCOMPARE(quintptr(pointer2.fetchAndAddRelease(valueToAdd)), quintptr(ps));
+        QCOMPARE(quintptr(pointer2.fetchAndAddRelease(-valueToAdd)), quintptr(ps + valueToAdd));
+        QCOMPARE(quintptr(static_cast<short *>(pointer2)), quintptr(ps));
+        QAtomicPointer<int> pointer3 = pi;
+        QCOMPARE(quintptr(pointer3.fetchAndAddRelease(valueToAdd)), quintptr(pi));
+        QCOMPARE(quintptr(pointer3.fetchAndAddRelease(-valueToAdd)), quintptr(pi + valueToAdd));
+        QCOMPARE(quintptr(static_cast<int *>(pointer3)), quintptr(pi));
+    }
+
+    {
+        QAtomicPointer<char> pointer1 = pc;
+        QCOMPARE(quintptr(pointer1.fetchAndAddOrdered(valueToAdd)), quintptr(pc));
+        QCOMPARE(quintptr(pointer1.fetchAndAddOrdered(-valueToAdd)), quintptr(pc + valueToAdd));
+        QCOMPARE(quintptr(static_cast<char *>(pointer1)), quintptr(pc));
+        QAtomicPointer<short> pointer2 = ps;
+        QCOMPARE(quintptr(pointer2.fetchAndAddOrdered(valueToAdd)), quintptr(ps));
+        QCOMPARE(quintptr(pointer2.fetchAndAddOrdered(-valueToAdd)), quintptr(ps + valueToAdd));
+        QCOMPARE(quintptr(static_cast<short *>(pointer2)), quintptr(ps));
+        QAtomicPointer<int> pointer3 = pi;
+        QCOMPARE(quintptr(pointer3.fetchAndAddOrdered(valueToAdd)), quintptr(pi));
+        QCOMPARE(quintptr(pointer3.fetchAndAddOrdered(-valueToAdd)), quintptr(pi + valueToAdd));
+        QCOMPARE(quintptr(static_cast<int *>(pointer3)), quintptr(pi));
+    }
+}
+
+QTEST_APPLESS_MAIN(tst_QAtomicPointer)
+#include "tst_qatomicpointer.moc"