re PR c++/57183 ([C++11] auto and -Wunused-variable)

/cp
2013-05-06  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/57183
	* decl.c (cp_finish_decl): After do_auto_deduction copy the
	qualifers with cp_apply_type_quals_to_decl.

/testsuite
2013-05-06  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/57183
	* g++.dg/cpp0x/auto38.C: New.

From-SVN: r198636

gcc/cp/ChangeLog

+2013-05-06  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/57183
+	* decl.c (cp_finish_decl): After do_auto_deduction copy the
+	qualifers with cp_apply_type_quals_to_decl.
+
 2013-05-05  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	* pt.c (convert_nontype_argument): Add missing whitespace in

gcc/cp/decl.c

@@ -6147,6 +6147,7 @@ cp_finish_decl (tree decl, tree init, bool init_const_expr_p,
 						   auto_node);
       if (type == error_mark_node)
 	return;
+      cp_apply_type_quals_to_decl (cp_type_quals (type), decl);
     }
 
   if (!ensure_literal_type_for_constexpr_object (decl))

gcc/testsuite/ChangeLog

+2013-05-06  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/57183
+	* g++.dg/cpp0x/auto38.C: New.
+
 2013-05-06  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/57185

gcc/testsuite/g++.dg/cpp0x/auto38.C

+// PR c++/57183
+// { dg-do compile { target c++11 } }
+// { dg-options "-Wunused-variable" }
+
+constexpr float PI_0 = 3.1415926F;
+constexpr auto PI_1 = 3.1415926F;
+const float PI_2 = 3.1415926F;
+const auto PI_3 = 3.1415926F;