re PR c++/63540 (Erroneous "'Derived' declares a move constructor or move…

re PR c++/63540 (Erroneous "'Derived' declares a move constructor or move assignment operator" in error.)

2019-03-08  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/63540
	* g++.dg/cpp0x/implicit17.C: New.

From-SVN: r269508

gcc/testsuite/ChangeLog

 2019-03-08  Paolo Carlini  <paolo.carlini@oracle.com>
 
+	PR c++/63540
+	* g++.dg/cpp0x/implicit17.C: New.
+
+2019-03-08  Paolo Carlini  <paolo.carlini@oracle.com>
+
 	PR c++/22149
 	* g++.dg/template/access29.C: New.
 

gcc/testsuite/g++.dg/cpp0x/implicit17.C

+// PR c++/63540
+// { dg-do compile { target c++11 } }
+
+template <typename T,
+	  typename = decltype(*static_cast<T*>(0) = 0)> int break_it();
+template <typename> int break_it();
+
+struct Base {
+  Base(const Base &);
+  void operator=(Base &&);
+};
+
+struct Derived : Base {
+  using Base::operator=;
+};
+
+int a = break_it<Derived>();
+Derived v(v);