More nullptr usage in headers

Diff generated by running clang-tidy's modernize-use-nullptr checker on
the CMake-based Qt version.

Skipping src/3rdparty, examples/, tests/

Change-Id: Ib182074e2e2fd52f63093f73b3e2e4c0cb7af188
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/concurrent/qtconcurrentcompilertest.h b/src/concurrent/qtconcurrentcompilertest.h
index cddfd06ca1..72cf1670a0 100644
--- a/src/concurrent/qtconcurrentcompilertest.h
+++ b/src/concurrent/qtconcurrentcompilertest.h
@@ -52,7 +52,7 @@ template<class T>
 class HasResultType {
     typedef char Yes;
     typedef void *No;
-    template<typename U> static Yes test(int, const typename U::result_type * = 0);
+    template<typename U> static Yes test(int, const typename U::result_type * = nullptr);
     template<typename U> static No test(double);
 public:
     enum { Value = (sizeof(test<T>(0)) == sizeof(Yes)) };