In ms mode, a move assignment operator shouldn't mark a copy ctor as deleted.

MSVC2010's pair class has a move assignment operator but no explicit copy
constructor, which makes it unusable without this change.

For symmetry, let move copy constructors not mark the default assignment
operator as deleted either. Both changes match cl.exe's behavior.  Fixes
pr11826.

Also update the standard excerpt to point to the right paragraph.

llvm-svn: 148675

1 files changed, 21 insertions, 0 deletions

diff --git a/clang/test/SemaCXX/microsoft-cxx0x.cpp b/clang/test/SemaCXX/microsoft-cxx0x.cpp
index 82966d8a447..a0dbb75e079 100644
--- a/clang/test/SemaCXX/microsoft-cxx0x.cpp
+++ b/clang/test/SemaCXX/microsoft-cxx0x.cpp
@@ -7,4 +7,25 @@ struct A {
 int b = 3;
 A var = {  b }; // expected-warning {{ cannot be narrowed }} expected-note {{override}}
 
+namespace PR11826 {
+  struct pair {
+    pair(int v) { }
+    void operator=(pair&& rhs) { }
+  };
+  void f() {
+    pair p0(3);
+    pair p = p0;
+  }
+}
 
+namespace PR11826_for_symmetry {
+  struct pair {
+    pair(int v) { }
+    pair(pair&& rhs) { }
+  };
+  void f() {
+    pair p0(3);
+    pair p(4);
+    p = p0;
+  }
+}