re PR c++/43824 (C++0x feature "inline namespace" enabled under -std=c++98; no warnings)

	PR c++/43824
	* error.c (maybe_warn_cpp0x): Add new warning
	CPP0X_INLINE_NAMESPACES.
	* parser.c (cp_parser_namespace_definition): Likewise.
	* cp-tree.h (cpp0x_warn_str): Likewise.

From-SVN: r164201

gcc/cp/ChangeLog

+2010-09-10  Rodrigo Rivas Costa <rodrigorivascosta@gmail.com>
+
+	PR c++/43824
+	* error.c (maybe_warn_cpp0x): Add new warning
+	CPP0X_INLINE_NAMESPACES.
+	* parser.c (cp_parser_namespace_definition): Likewise.
+	* cp-tree.h (cpp0x_warn_str): Likewise.
+
 2010-09-10  Richard Guenther  <rguenther@suse.de>
 
 	* decl.c (reshape_init_vector): For VECTOR_TYPEs, use

gcc/cp/cp-tree.h

@@ -387,7 +387,9 @@ typedef enum cpp0x_warn_str
   /* scoped enums */
   CPP0X_SCOPED_ENUMS,
   /* defaulted and deleted functions */
-  CPP0X_DEFAULTED_DELETED
+  CPP0X_DEFAULTED_DELETED,
+  /* inline namespaces */
+  CPP0X_INLINE_NAMESPACES
 } cpp0x_warn_str;
   
 /* The various kinds of operation used by composite_pointer_type. */

gcc/cp/error.c

@@ -3028,6 +3028,11 @@ maybe_warn_cpp0x (cpp0x_warn_str str)
 	pedwarn (input_location, 0,
 		 "defaulted and deleted functions "
 		 "only available with -std=c++0x or -std=gnu++0x");
+	break;
+      case CPP0X_INLINE_NAMESPACES:
+	pedwarn (input_location, OPT_pedantic,
+		 "inline namespaces "
+		 "only available with -std=c++0x or -std=gnu++0x");
 	break;	
       default:
 	gcc_unreachable();

gcc/cp/parser.c

@@ -13255,6 +13255,7 @@ cp_parser_namespace_definition (cp_parser* parser)
 
   if (cp_lexer_next_token_is_keyword (parser->lexer, RID_INLINE))
     {
+      maybe_warn_cpp0x (CPP0X_INLINE_NAMESPACES);
       is_inline = true;
       cp_lexer_consume_token (parser->lexer);
     }

gcc/testsuite/ChangeLog

+2010-09-10  Rodrigo Rivas Costa <rodrigorivascosta@gmail.com>
+
+	PR c++/43824
+	* g++.dg/lookup/strong-using-1.C: Set dg-options to "".
+	* g++.dg/lookup/strong-using-2.C: Likewise.
+	* g++.dg/lookup/strong-using-3.C: Likewise.
+	* g++.dg/lookup/strong-using-5.C: Likewise.
+
+	* g++.dg/cpp0x/inline-ns3.C: Add -std=c++0x.
+	* g++.dg/cpp0x/inline-ns4.C: New.
+	* g++.dg/cpp0x/inline-ns5.C: New.
+
 2010-09-10  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR middle-end/45634

gcc/testsuite/g++.dg/cpp0x/inline-ns3.C

+// { dg-options -std=c++0x }
+
 namespace C
 {
   void f();

gcc/testsuite/g++.dg/cpp0x/inline-ns4.C

+// { dg-options "-std=gnu++98 -pedantic" }
+inline namespace { } // { dg-warning "inline namespaces" }

gcc/testsuite/g++.dg/cpp0x/inline-ns5.C

+// { dg-options "-std=gnu++98 -pedantic-errors" }
+inline namespace { } // { dg-error "inline namespaces" }

gcc/testsuite/g++.dg/lookup/strong-using-1.C

 // PR c++/13594 (secondary)
 
+// { dg-options "" }
 // { dg-do compile }
 
 namespace fool {

gcc/testsuite/g++.dg/lookup/strong-using-2.C

 // PR c++/13594
 
+// { dg-options "" }
 // { dg-do compile }
 
 namespace foo {

gcc/testsuite/g++.dg/lookup/strong-using-3.C

 // PR c++/13659
 
+// { dg-options "" }
 // { dg-do compile }
 
 namespace bar {

gcc/testsuite/g++.dg/lookup/strong-using-5.C

 // PR c++/33486
 
+// { dg-options "" }
+
 namespace A
 {
   inline namespace B