* rtti.c (build_x_typeid): Check rtti is enabled.

From-SVN: r26675

gcc/cp/ChangeLog

+1999-04-27  Nathan Sidwell  <nathan@acm.org>
+
+	* rtti.c (build_x_typeid): Check rtti is enabled.
+
 1999-04-26  Mark Mitchell  <mark@codesourcery.com>
 
 	* search.c (is_subobject_of_p): Make sure we're looking at the

gcc/cp/rtti.c

@@ -261,9 +261,15 @@ build_x_typeid (exp)
      tree exp;
 {
   tree cond = NULL_TREE;
-  tree type = TREE_TYPE (tinfo_fn_type);
+  tree type;
   int nonnull;
 
+  if (! flag_rtti)
+    {
+      error ("cannot use typeid with -fno-rtti");
+      return error_mark_node;
+    }
+  
   if (TYPE_SIZE (type_info_type_node) == NULL_TREE)
     {
       error ("must #include <typeinfo> before using typeid");
@@ -288,6 +294,7 @@ build_x_typeid (exp)
   if (exp == error_mark_node)
     return error_mark_node;
 
+  type = TREE_TYPE (tinfo_fn_type);
   exp = build_call (exp, type, NULL_TREE);
 
   if (cond)

gcc/testsuite/g++.old-deja/g++.other/rtti5.C

+// Build don't link:
+// Special g++ Options: -fno-rtti
+
+// Copyright (C) 1999 Free Software Foundation, Inc.
+// Contributed by Nathan Sidwell 9 Apr 1999 <nathan@acm.org>
+// derrived from bug report from Alexander Zvyagin <zvyagin@mx.ihep.su>
+
+// check we don't die with disabled rtti
+
+
+int main(void) {
+  int i;
+  typeid(i); // ERROR - rtti disabled
+}