use nullptr consistently (clang-tidy)

From now on we prefer nullptr instead of 0 to clarify cases where
we are assigning or testing a pointer rather than a numeric zero.

Also, replaced cases where 0 was passed as Qt::KeyboardModifiers
with Qt::NoModifier (clang-tidy replaced them with nullptr, which
waas wrong, so it was just as well to make the tests more readable
rather than to revert those lines).

Change-Id: I4735d35e4d9f42db5216862ce091429eadc6e65d
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/examples/qml/referenceexamples/grouped/main.cpp b/examples/qml/referenceexamples/grouped/main.cpp
index 8a137b0380..17dcd09c34 100644
--- a/examples/qml/referenceexamples/grouped/main.cpp
+++ b/examples/qml/referenceexamples/grouped/main.cpp
@@ -76,7 +76,7 @@ int main(int argc, char ** argv)
         else
             qWarning() << "She is inviting:";
 
-        Person *bestShoe = 0;
+        Person *bestShoe = nullptr;
         for (int ii = 0; ii < party->guestCount(); ++ii) {
             Person *guest = party->guest(ii);
             qWarning() << "   " << guest->name();