C++11: If a class has a user-declared copy operation or destructor, the

implicit definition of a copy operation is deprecated. Add a warning for this
to -Wdeprecated. This warning is disabled by default for now, pending
investigation into how common this situation is.

llvm-svn: 183884

1 files changed, 24 insertions, 0 deletions

diff --git a/clang/test/SemaCXX/deprecated.cpp b/clang/test/SemaCXX/deprecated.cpp
index 74dbf253564..b69dcb09dd2 100644
--- a/clang/test/SemaCXX/deprecated.cpp
+++ b/clang/test/SemaCXX/deprecated.cpp
@@ -33,3 +33,27 @@ struct T : private S {
   // expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
 #endif
 };
+
+#if __cplusplus >= 201103L
+namespace DeprecatedCopy {
+  struct Assign {
+    Assign &operator=(const Assign&); // expected-warning {{definition of implicit copy constructor for 'Assign' is deprecated because it has a user-declared copy assignment operator}}
+  };
+  Assign a1, a2(a1); // expected-note {{implicit default copy constructor for 'Assign' first required here}}
+
+  struct Ctor {
+    Ctor();
+    Ctor(const Ctor&); // expected-warning {{definition of implicit copy assignment operator for 'Ctor' is deprecated because it has a user-declared copy constructor}}
+  };
+  Ctor b1, b2;
+  void f() { b1 = b2; } // expected-note {{implicit default copy assignment operator for 'Ctor' first required here}}
+
+  struct Dtor {
+    ~Dtor();
+    // expected-warning@-1 {{definition of implicit copy constructor for 'Dtor' is deprecated because it has a user-declared destructor}}
+    // expected-warning@-2 {{definition of implicit copy assignment operator for 'Dtor' is deprecated because it has a user-declared destructor}}
+  };
+  Dtor c1, c2(c1); // expected-note {{implicit default copy constructor for 'Dtor' first required here}}
+  void g() { c1 = c2; } // expected-note {{implicit default copy assignment operator for 'Dtor' first required here}}
+}
+#endif