[Bug c++/37877] New: Invalid "invalid use of static" error

[jfc at mit dot edu]

I believe this is valid C++:

extern "C++" struct S { static int x; } s;

g++ 4.2.4, 4.3.1, and the Debian version of 4.3.2 reject the declaration with
the error:

static.cpp:1: error: invalid use of ‘static’ in linkage specification

I don't think static members of structures were intended to be disallowed by
the prohibition duplicate storage classes in declarations like

extern "lang" static int x;

This seems to fix the problem:

===================================================================
--- gcc/gcc/cp/parser.c (revision 5135)
+++ gcc/gcc/cp/parser.c (revision 5136)
@@ -13423,6 +13423,7 @@
   bool nested_name_specifier_p;
   unsigned saved_num_template_parameter_lists;
   bool saved_in_function_body;
+  bool saved_in_unbraced_linkage_specification_p;
   tree old_scope = NULL_TREE;
   tree scope = NULL_TREE;
   tree bases;
@@ -13475,6 +13476,10 @@
   /* We are not in a function body.  */
   saved_in_function_body = parser->in_function_body;
   parser->in_function_body = false;
+  /* We are not immediately inside an extern "lang" block */
+  saved_in_unbraced_linkage_specification_p
+    = parser->in_unbraced_linkage_specification_p;
+  parser->in_unbraced_linkage_specification_p = false;

   /* Start the class.  */
   if (nested_name_specifier_p)
@@ -13587,6 +13592,8 @@
   parser->in_function_body = saved_in_function_body;
   parser->num_template_parameter_lists
     = saved_num_template_parameter_lists;
+  parser->in_unbraced_linkage_specification_p
+    = saved_in_unbraced_linkage_specification_p;

   return type;
 }


-- 
           Summary: Invalid "invalid use of static" error
           Product: gcc
           Version: 4.3.2
            Status: UNCONFIRMED
          Severity: minor
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jfc at mit dot edu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37877