[PATCH] Compare VALUE_ADDRESS with ZERO not NULL

[Andrew Cagney]

FYI,

I've committed the attatched.  VALUE_ADDRESS() returns a target
CORE_ADDR not a host pointer.

	enjoy,
		Andrew
Sun Apr  9 22:54:29 2000  Andrew Cagney  <cagney@b1.cygnus.com>

	* valops.c (value_rtti_type): Compare VALUE_ADDRESS with ``0'' not
 	NULL. Macro returns a CORE_ADDR.

Index: valops.c
===================================================================
RCS file: /cvs/src/src/gdb/valops.c,v
retrieving revision 1.7
diff -p -r1.7 valops.c
*** valops.c	2000/04/04 04:53:50	1.7
--- valops.c	2000/04/09 13:00:23
*************** value_rtti_type (v, full, top, using_enc
*** 3358,3364 ****
  	we'd waste a bunch of time figuring out we already know the type.
          Besides, we don't care about the type, just the actual pointer
        */
!       if (VALUE_ADDRESS(value_field(v,TYPE_VPTR_FIELDNO(known_type))) == NULL)
  	return NULL;
  
        /*
--- 3358,3364 ----
  	we'd waste a bunch of time figuring out we already know the type.
          Besides, we don't care about the type, just the actual pointer
        */
!       if (VALUE_ADDRESS (value_field (v, TYPE_VPTR_FIELDNO (known_type))) == 0)
  	return NULL;
  
        /*