PR c/44772

	* c-decl.c (warn_cxx_compat_finish_struct): Don't call
	pointer_set_contains if DECL_NAME is NULL.

	* gcc.dg/Wcxx-compat-21.c: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@166384 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 25 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/Wcxx-compat-21.c b/gcc/testsuite/gcc.dg/Wcxx-compat-21.c
new file mode 100644
index 00000000000..183f0f17980
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/Wcxx-compat-21.c
@@ -0,0 +1,25 @@
+/* PR c/44772 */
+/* { dg-do compile } */
+/* { dg-options "-Wc++-compat" } */
+
+typedef enum { E1, E2 } E;
+
+typedef struct
+{
+  E e;
+  union
+  {
+    int i;
+    char *c;
+  };			/* { dg-bogus "as both field and typedef name" } */
+} S;
+
+S s;
+
+typedef int T;
+
+struct U
+{
+  T t;
+  union { int i; };	/* { dg-bogus "as both field and typedef name" } */
+};