Reject the allocation of variably-modified types in C++ 'new'

expressions. Fixes PR8209 in the narrowest way possible. I'm still
considering whether I want to implement the extension that permits the
use of VLA types in a 'new' expression.

llvm-svn: 115790

1 files changed, 7 insertions, 0 deletions

diff --git a/clang/test/SemaCXX/c99-variable-length-array.cpp b/clang/test/SemaCXX/c99-variable-length-array.cpp
index 7dc912a0d5f..98df1dbfe81 100644
--- a/clang/test/SemaCXX/c99-variable-length-array.cpp
+++ b/clang/test/SemaCXX/c99-variable-length-array.cpp
@@ -114,3 +114,10 @@ namespace rdar8021385 {
   };
   B<A> a;
 }
+
+namespace PR8209 {
+  void f(int n) {
+    typedef int vla_type[n]; // expected-warning{{variable length arrays are a C99 feature, accepted as an extension}}
+    (void)new vla_type; // expected-error{{variably}}
+  }
+}