re PR c++/34600 (ICE with invalid use of extern)

/cp
2008-08-14  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/34600
	* decl.c (grokdeclarator): In case of extern and initializer, return
	error_mark_node after the error.

/testsuite
2008-08-14  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/34600
	* g++.dg/parse/crash43.C: New.

From-SVN: r139099

gcc/cp/ChangeLog

+2008-08-14  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/34600
+	* decl.c (grokdeclarator): In case of extern and initializer, return
+	error_mark_node after the error.
+
 2008-08-13  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
 
 	PR 30551

gcc/cp/decl.c

@@ -9270,7 +9270,10 @@ grokdeclarator (const cp_declarator *declarator,
 	      warning (0, "%qs initialized and declared %<extern%>", name);
 	  }
 	else
-	  error ("%qs has both %<extern%> and initializer", name);
+	  {
+	    error ("%qs has both %<extern%> and initializer", name);
+	    return error_mark_node;
+	  }
       }
 
     /* Record `register' declaration for warnings on &

gcc/testsuite/ChangeLog

+2008-08-14  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/34600
+	* g++.dg/parse/crash43.C: New.
+
 2008-08-14  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
 
         PR c/28152

gcc/testsuite/g++.dg/parse/crash43.C

+// PR c++/34600
+
+namespace N
+{
+  void foo()
+  {
+    extern int i = 0; // { dg-error "error: 'i' has both 'extern' and initializer" }
+  }
+}