typeck.c (build_c_cast): Don't warn integer->pointer size mismatch for constants.

        * typeck.c (build_c_cast): Don't warn integer->pointer size
        mismatch for constants.

From-SVN: r33740

gcc/cp/ChangeLog

+2000-05-06  Richard Henderson  <rth@cygnus.com>
+
+	* typeck.c (build_c_cast): Don't warn integer->pointer size
+	mismatch for constants.
+
 2000-05-06  Nathan Sidwell  <nathan@codesourcery.com>
 
 	* rtti.c (ptmd_initializer): Set non-public, if class is

gcc/cp/typeck.c

@@ -5481,9 +5481,8 @@ build_c_cast (type, expr)
   if (TREE_CODE (type) == POINTER_TYPE
       && TREE_CODE (otype) == INTEGER_TYPE
       && TYPE_PRECISION (type) != TYPE_PRECISION (otype)
-      /* Don't warn about converting 0 to pointer,
-	 provided the 0 was explicit--not cast or made by folding.  */
-      && !(TREE_CODE (value) == INTEGER_CST && integer_zerop (value)))
+      /* Don't warn about converting any constant.  */
+      && !TREE_CONSTANT (value))
     warning ("cast to pointer from integer of different size");
 
   if (TREE_CODE (type) == REFERENCE_TYPE)