Re: enable-build-with-cxx bootstrap compare broken by r149964

[Jason Merrill]

Here's the fix I'm checking in for the * path.

Jason

commit 16463ef55164d4668d6f1eeb150974452e1dbe58
Author: Jason Merrill <ja...@redhat.com>
Date:   Sat Oct 31 18:10:17 2009 -0400

    	* rtti.c (tinfo_name): Fix lengths for private case.

diff --git a/gcc/cp/rtti.c b/gcc/cp/rtti.c
index 2926f97..c7af74a 100644
--- a/gcc/cp/rtti.c
+++ b/gcc/cp/rtti.c
@@ -364,10 +364,10 @@ tinfo_name (tree type, bool mark_private)
   if (mark_private)
     {
       /* Inject '*' at beginning of name to force pointer comparison.  */
-      char* buf = (char*) XALLOCAVEC (char, length + 1);
+      char* buf = (char*) XALLOCAVEC (char, length + 2);
       buf[0] = '*';
-      memcpy (buf + 1, name, length);
-      name_string = build_string (length + 1, buf);
+      memcpy (buf + 1, name, length + 1);
+      name_string = build_string (length + 2, buf);
     }
   else
     name_string = build_string (length + 1, name);
diff --git a/gcc/testsuite/g++.dg/rtti/typeid9.C b/gcc/testsuite/g++.dg/rtti/typeid9.C
new file mode 100644
index 0000000..381252d
--- /dev/null
+++ b/gcc/testsuite/g++.dg/rtti/typeid9.C
@@ -0,0 +1,21 @@
+// Test that the typeid name for a local class is properly null-terminated.
+// { dg-do run }
+
+#include <string.h>
+#include <typeinfo>
+#include <stdio.h>
+
+int f()
+{
+  struct A {}; struct B {};
+  const std::type_info &ti = typeid(A);
+  const std::type_info &ti2 = typeid(B);
+  puts (ti.name());
+  puts (ti2.name());
+  return strcmp (ti.name(), "Z1fvE1A") || strcmp (ti2.name(), "Z1fvE1B");
+}
+
+int main()
+{
+  return f();
+}