Avoid INT_MIN % -1 and INT_MIN / -1

Those throw arithmetic exceptions as the result doesn't fit into an
integer.

Fixes: QTBUG-75030
Change-Id: Ibd978848f42cf1c9da1e4af2dc9d7da123ef8f5a
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 17 insertions, 0 deletions

diff --git a/tests/auto/qml/qqmlecmascript/tst_qqmlecmascript.cpp b/tests/auto/qml/qqmlecmascript/tst_qqmlecmascript.cpp
index d8784f4855..0e8844d23f 100644
--- a/tests/auto/qml/qqmlecmascript/tst_qqmlecmascript.cpp
+++ b/tests/auto/qml/qqmlecmascript/tst_qqmlecmascript.cpp
@@ -366,6 +366,7 @@ private slots:
     void tailCallWithArguments();
     void deleteSparseInIteration();
     void saveAccumulatorBeforeToInt32();
+    void intMinDividedByMinusOne();
 
 private:
 //    static void propertyVarWeakRefCallback(v8::Persistent<v8::Value> object, void* parameter);
@@ -8941,6 +8942,22 @@ void tst_qqmlecmascript::saveAccumulatorBeforeToInt32()
     QCOMPARE(value.toString(), QLatin1String("RangeError: Maximum call stack size exceeded."));
 }
 
+void tst_qqmlecmascript::intMinDividedByMinusOne()
+{
+    QQmlEngine engine;
+    QQmlComponent component(&engine);
+    component.setData(QByteArray("import QtQml 2.2\n"
+                                 "QtObject {\n"
+                                 "   property int intMin: -2147483648\n"
+                                 "   property int minusOne: -1\n"
+                                 "   property double doesNotFitInInt: intMin / minusOne\n"
+                                 "}"), QUrl());
+    QVERIFY(component.isReady());
+    QScopedPointer<QObject> object(component.create());
+    QVERIFY(!object.isNull());
+    QCOMPARE(object->property("doesNotFitInInt").toUInt(), 2147483648u);
+}
+
 QTEST_MAIN(tst_qqmlecmascript)
 
 #include "tst_qqmlecmascript.moc"