Replace Qt CONSTEXPR defines with constexpr

Both normal and relaxed constexpr are required by our new minimum of
C++17.

Change-Id: Ic028b88a2e7a6cb7d5925f3133b9d54859a81744
Reviewed-by: Sona Kurazyan <sona.kurazyan@qt.io>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/corelib/itemmodels/qitemselectionmodel.cpp b/src/corelib/itemmodels/qitemselectionmodel.cpp
index 5eed378f9e..b0708a1074 100644
--- a/src/corelib/itemmodels/qitemselectionmodel.cpp
+++ b/src/corelib/itemmodels/qitemselectionmodel.cpp
@@ -1259,10 +1259,10 @@ struct IsNotValid {
     typedef bool result_type;
     struct is_transparent : std::true_type {};
     template <typename T>
-    Q_DECL_CONSTEXPR bool operator()(T &t) const noexcept(noexcept(t.isValid()))
+    constexpr bool operator()(T &t) const noexcept(noexcept(t.isValid()))
     { return !t.isValid(); }
     template <typename T>
-    Q_DECL_CONSTEXPR bool operator()(T *t) const noexcept(noexcept(t->isValid()))
+    constexpr bool operator()(T *t) const noexcept(noexcept(t->isValid()))
     { return !t->isValid(); }
 };
 }