Pending clear answer from WG21 on whether core issue 903 is intended to apply to

C++11 or just C++17, restrict the set of null pointer constants in C++11 mode
back to those which were considered null in C++98.

llvm-svn: 150510

1 files changed, 11 insertions, 0 deletions

diff --git a/clang/test/SemaCXX/nullptr.cpp b/clang/test/SemaCXX/nullptr.cpp
index 6f660366e99..0e6771b57fc 100644
--- a/clang/test/SemaCXX/nullptr.cpp
+++ b/clang/test/SemaCXX/nullptr.cpp
@@ -161,3 +161,14 @@ namespace templates {
   
   X2<nullptr, nullptr, nullptr, nullptr> x2;
 }
+
+namespace null_pointer_constant {
+
+// Pending implementation of core issue 903, ensure we don't allow any of the
+// C++11 constant evaluation semantics in null pointer constants.
+struct S { int n; };
+constexpr int null() { return 0; }
+void *p = S().n; // expected-error {{cannot initialize}}
+void *q = null(); // expected-error {{cannot initialize}}
+
+}