re PR c++/21347 (spurious warning with -Wctor-dtor-privacy)

	PR c++/21347
	* class.c (maybe_warn_about_overly_private_class): Lazy
	constructors are public.
	PR c++/21347
	* g++.dg/warn/Wctor-dtor.C: New test.

From-SVN: r105441

gcc/cp/ChangeLog

+2005-10-15  Mark Mitchell  <mark@codesourcery.com>
+
+	PR c++/21347
+	* class.c (maybe_warn_about_overly_private_class): Lazy
+	constructors are public.
+
 2005-10-14  Mark Mitchell  <mark@codesourcery.com>
 
 	PR c++/19565

gcc/cp/class.c

@@ -1537,7 +1537,10 @@ maybe_warn_about_overly_private_class (tree t)
       return;
     }
 
-  if (TYPE_HAS_CONSTRUCTOR (t))
+  if (TYPE_HAS_CONSTRUCTOR (t)
+      /* Implicitly generated constructors are always public.  */
+      && (!CLASSTYPE_LAZY_DEFAULT_CTOR (t)
+	  || !CLASSTYPE_LAZY_COPY_CTOR (t)))
     {
       int nonprivate_ctor = 0;
 

gcc/testsuite/ChangeLog

+2005-10-15  Mark Mitchell  <mark@codesourcery.com>
+
+	PR c++/21347
+	* g++.dg/warn/Wctor-dtor.C: New test.
+
 2005-10-14  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 
 	PR c/23439

gcc/testsuite/g++.dg/warn/Wctor-dtor.C

+// PR c++/21347
+// { dg-options "-Wctor-dtor-privacy" }
+
+class A {
+public:
+  int x;
+  int getX() { return x; } // comment out to avoid warning
+};
+
+int foo() {
+  A a; // accepted: clearly the ctor is not private
+  return a.x;
+}