From 145a1235225ebab6d7ced18f54da733561400b59 Mon Sep 17 00:00:00 2001
From: David Rose <david@ddrose.com>
Date: Tue, 26 Jun 2007 21:06:15 +0000
Subject: [PATCH] compiler warnings

---
 panda/src/putil/bitMask.I | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/panda/src/putil/bitMask.I b/panda/src/putil/bitMask.I
index ecbbd4892a..4b737eec5d 100644
--- a/panda/src/putil/bitMask.I
+++ b/panda/src/putil/bitMask.I
@@ -477,7 +477,7 @@ get_lowest_on_bit() const {
     return -1;
   }
 
-  WordType w = (_word & -_word);
+  WordType w = (_word & (~_word + 1));
   return count_bits_in_word(w - 1);
 }
 
@@ -558,7 +558,7 @@ get_next_higher_different_bit(int low_bit) const {
   } else {
     // Now determine the lowest 1 bit in the remaining word.  This
     // operation will clear out all bits except for the lowest 1 bit.
-    w = (w & -w);
+    w = (w & (~w + 1));
     
     // And the answer is the number of bits in (w - 1).
     return count_bits_in_word(w - 1) + low_bit + 1;