parser.c (cp_parser_decl_specifier_seq): Add fix-it hints for friend outside…

parser.c (cp_parser_decl_specifier_seq): Add fix-it hints for friend outside class and obsolete auto as...

        * parser.c (cp_parser_decl_specifier_seq): Add fix-it hints for
        friend outside class and obsolete auto as storage-class-specifier.

        * g++.dg/diagnostic/friend1.C: New test.
        * g++.dg/cpp0x/auto1.C: Add check for fix-it hint.

From-SVN: r250282

gcc/cp/ChangeLog

+2017-07-17  Volker Reichelt  <v.reichelt@netcologne.de>
+
+	* parser.c (cp_parser_decl_specifier_seq): Add fix-it hints for
+	friend outside class and obsolete auto as storage-class-specifier.
+
 2017-07-17  Nathan Sidwell  <nathan@acm.org>
 
 	* class.c (maybe_warn_about_overly_private_class): Ignore public

gcc/cp/parser.c

@@ -13382,7 +13382,9 @@ cp_parser_decl_specifier_seq (cp_parser* parser,
 	case RID_FRIEND:
 	  if (!at_class_scope_p ())
 	    {
-	      error_at (token->location, "%<friend%> used outside of class");
+	      gcc_rich_location richloc (token->location);
+	      richloc.add_fixit_remove ();
+	      error_at_rich_loc (&richloc, "%<friend%> used outside of class");
 	      cp_lexer_purge_token (parser->lexer);
 	    }
 	  else
@@ -13444,10 +13446,13 @@ cp_parser_decl_specifier_seq (cp_parser* parser,
 	      /* Consume the token.  */
 	      cp_lexer_consume_token (parser->lexer);
 
-              /* Complain about `auto' as a storage specifier, if
-                 we're complaining about C++0x compatibility.  */
-              warning_at (token->location, OPT_Wc__11_compat, "%<auto%>"
-			  " changes meaning in C++11; please remove it");
+	      /* Complain about `auto' as a storage specifier, if
+		 we're complaining about C++0x compatibility.  */
+	      gcc_rich_location richloc (token->location);
+	      richloc.add_fixit_remove ();
+	      warning_at_rich_loc (&richloc, OPT_Wc__11_compat,
+				   "%<auto%> changes meaning in C++11; "
+				   "please remove it");
 
               /* Set the storage class anyway.  */
               cp_parser_set_storage_class (parser, decl_specs, RID_AUTO,

gcc/testsuite/ChangeLog

+2017-07-17  Volker Reichelt  <v.reichelt@netcologne.de>
+
+	* g++.dg/diagnostic/friend1.C: New test.
+	* g++.dg/cpp0x/auto1.C: Add check for fix-it hint.
+
 2017-07-17  Nathan Sidwell  <nathan@acm.org>
 
 	* g++.dg/warn/ctor-dtor-privacy-3.C: New.

gcc/testsuite/g++.dg/cpp0x/auto1.C

 // { dg-do compile { target c++11 } }
-// { dg-options "-std=c++98 -Wc++11-compat" }
+// { dg-options "-std=c++98 -Wc++11-compat -fdiagnostics-show-caret" }
 
 // Test warning for use of auto in C++98 mode with C++11
 // compatibility warnings
 void f()
 {
-  auto int x = 5; // { dg-warning "changes meaning" }
+  auto int x = 5; /* { dg-warning "changes meaning" }
+  { dg-begin-multiline-output "" }
+   auto int x = 5;
+   ^~~~
+   ----
+  { dg-end-multiline-output "" } */
 }

gcc/testsuite/g++.dg/diagnostic/friend1.C

+// { dg-options "-fdiagnostics-show-caret" }
+
+friend void foo();  /* { dg-error "used outside of class" }
+  { dg-begin-multiline-output "" }
+ friend void foo();
+ ^~~~~~
+ ------
+  { dg-end-multiline-output "" } */