re PR c++/25666 (Bad diagnostic for templated destructor as friend)

/cp
2013-05-25  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/25666
	* decl2.c (check_classfn): Check for destructors declared as member
	templates.

/testsuite
2013-05-25  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/25666
	* g++.dg/parse/dtor16.C: New.
	* g++.dg/parse/dtor6.C: Adjust.

From-SVN: r199324

gcc/cp/ChangeLog

+2013-05-25  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/25666
+	* decl2.c (check_classfn): Check for destructors declared as member
+	templates.
+
 2013-05-24  Jason Merrill  <jason@redhat.com>
 
 	PR c++/56971

gcc/cp/decl2.c

@@ -646,6 +646,15 @@ check_classfn (tree ctype, tree function, tree template_parms)
   /* OK, is this a definition of a member template?  */
   is_template = (template_parms != NULL_TREE);
 
+  /* [temp.mem]
+
+     A destructor shall not be a member template.  */
+  if (DECL_DESTRUCTOR_P (function) && is_template)
+    {
+      error ("destructor %qD declared as member template", function);
+      return error_mark_node;
+    }
+
   /* We must enter the scope here, because conversion operators are
      named by target type, and type equivalence relies on typenames
      resolving within the scope of CTYPE.  */

gcc/testsuite/ChangeLog

+2013-05-25  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/25666
+	* g++.dg/parse/dtor16.C: New.
+	* g++.dg/parse/dtor6.C: Adjust.
+
 2013-05-24  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	PR c++/19618

gcc/testsuite/g++.dg/parse/dtor16.C

+// PR c++/25666
+
+struct A { ~A(); };
+
+struct B
+{
+  template<int> friend A::~A();  // { dg-error "member template" }
+};

gcc/testsuite/g++.dg/parse/dtor6.C

 // PR c++/25638
 
-struct A { ~A(); }; // { dg-error "candidate" }  
+struct A { ~A(); };
 
 struct B : A
 {
-  template<int> friend A::~A(); // { dg-error "match" }
+  template<int> friend A::~A(); // { dg-error "member template" }
 };