Replace Q_ALIGNOF usage in qtbase with C++11 alignof keyword

The macro is not documented, so not part of the public Qt API. It is
made obsolete by the alignof keyword in C++11.

Remove the usage of the macro across qtbase, in particular the
workarounds for compilers that didn't support alignof, and that will
not be supported in Qt 6.

The macro definition is left in place, no need to break existing
code.

Task-number: QTBUG-76414
Change-Id: I1cfedcd4dd748128696cdfb546d97aae4f98c3da
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/corelib/kernel/qvariant.cpp b/src/corelib/kernel/qvariant.cpp
index 449adf0bab..258da1a8d4 100644
--- a/src/corelib/kernel/qvariant.cpp
+++ b/src/corelib/kernel/qvariant.cpp
@@ -1470,7 +1470,7 @@ static void customConstruct(QVariant::Private *d, const void *copy)
     } else {
         // Private::Data contains long long, and long double is the biggest standard type.
         const size_t maxAlignment =
-            qMax(Q_ALIGNOF(QVariant::Private::Data), Q_ALIGNOF(long double));
+            qMax(alignof(QVariant::Private::Data), alignof(long double));
         const size_t s = sizeof(QVariant::PrivateShared);
         const size_t offset = s + ((s * maxAlignment - s) % maxAlignment);
         void *data = operator new(offset + size);