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 <[email protected]>

1 files changed, 1 insertions, 1 deletions

diff --git a/examples/qml/referenceexamples/attached/birthdayparty.cpp b/examples/qml/referenceexamples/attached/birthdayparty.cpp
index 2594fea641..26aa56e86c 100644
--- a/examples/qml/referenceexamples/attached/birthdayparty.cpp
+++ b/examples/qml/referenceexamples/attached/birthdayparty.cpp
@@ -65,7 +65,7 @@ void BirthdayPartyAttached::setRsvp(const QDate &d)
 }
 
 BirthdayParty::BirthdayParty(QObject *parent)
-: QObject(parent), m_host(0)
+: QObject(parent), m_host(nullptr)
 {
 }