ref_transaction_update(): die on disallowed flags

diff --git a/sha1-lookup.c b/sha1-lookup.c
index 2552b7902c70154282eb278ffed7e21b2d618514..4cf3ebd9212f6d5c9b9829373e58c34b83f0a548 100644 (file)
--- a/sha1-lookup.c
+++ b/sha1-lookup.c
@@ -10,7 +10,7 @@ static uint32_t take2(const unsigned char *sha1)
  * Conventional binary search loop looks like this:
  *
  *      do {
- *              int mi = (lo + hi) / 2;
+ *              int mi = lo + (hi - lo) / 2;
  *              int cmp = "entry pointed at by mi" minus "target";
  *              if (!cmp)
  *                      return (mi is the wanted one)
@@ -95,7 +95,7 @@ int sha1_pos(const unsigned char *sha1, void *table, size_t nr,
                        hi = mi;
                else
                        lo = mi + 1;
-               mi = (hi + lo) / 2;
+               mi = lo + (hi - lo) / 2;
        } while (lo < hi);
        return -lo-1;
 }