diff options
| -rw-r--r-- | src/cairo-hull.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/cairo-hull.c b/src/cairo-hull.c index 73d95c554..ccdb34d45 100644 --- a/src/cairo-hull.c +++ b/src/cairo-hull.c @@ -125,8 +125,13 @@ _cairo_hull_vertex_compare (const void *av, const void *bv) static int _cairo_hull_prev_valid (cairo_hull_t *hull, int num_hull, int index) { + /* hull[0] is always valid, and we never need to wraparound, (if + * we are passed an index of 0 here, then the calling loop is just + * about to terminate). */ + if (index == 0) + return 0; + do { - /* hull[0] is always valid, so don't test and wraparound */ index--; } while (hull[index].discard); |