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diff --git a/gcc/testsuite/g++.old-deja/g++.law/union2.C b/gcc/testsuite/g++.old-deja/g++.law/union2.C
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+++ b/gcc/testsuite/g++.old-deja/g++.law/union2.C
@@ -0,0 +1,25 @@
+// { dg-do assemble }
+// GROUPS passed unions
+// anon-union file
+// From: gerlek@dat.cse.ogi.edu (Michael Gerlek)
+// Date: Tue, 8 Dec 92 12:56 PST
+// Subject: private anonymous unions have public members? (gcc-2.3.1)
+// Message-ID: <m0mzByL-0000hoC@dat.cse.ogi.edu>
+
+class A {
+public:
+ int x;
+private:
+ int y; // { dg-error "" } private
+ union {
+ int z; // { dg-error "" } private
+ };
+};
+
+void f() {
+ A a;
+
+ a.x = 0;
+ a.y = 1;// { dg-error "" } .*
+ a.z = 2;// { dg-error "" }
+}