41 using DoSmthDetector = decltype (std::declval<T> ().DoSmth (QString {}));
43 void DetectorTest::testDetectMember ()
47 int DoSmth (
const QString&);
55 static_assert (IsDetected_v<DoSmthDetector, Foo>);
56 static_assert (!IsDetected_v<DoSmthDetector, Bar>);