Partial fix for struct compatibility; there's still something messy

going on with mixing scopes, though.

llvm-svn: 47152

1 files changed, 19 insertions, 0 deletions

diff --git a/clang/test/Sema/struct-compat.c b/clang/test/Sema/struct-compat.c
new file mode 100644
index 00000000000..d63f9cd97c4
--- /dev/null
+++ b/clang/test/Sema/struct-compat.c
@@ -0,0 +1,19 @@
+/* RUN: clang %s -fsyntax-only -pedantic -verify
+ */
+
+extern struct {int a;} x; // expected-error{{previous definition is here}}
+extern struct {int a;} x; // expected-error{{redefinition of 'x'}}
+
+struct x;
+int a(struct x* b) {
+// FIXME: This test currently fails
+// Per C99 6.7.2.3, since the outer and inner "struct x"es have different
+// scopes, they don't refer to the same type, and are therefore incompatible
+struct x {int a;} *c = b;
+}
+
+struct x {int a;} r;
+int b() {
+// FIXME: This test currently also fails
+struct x {char x;} s = r;
+}