[path] Carefully check for no more points.

As the empty path points to an embedded buf, we cannot rely on the buf
pointer being NULL to mark end-of-path.

1 files changed, 5 insertions, 5 deletions

diff --git a/src/cairo-path-fixed-private.h b/src/cairo-path-fixed-private.h
index c995e2a91..c7a098559 100644
--- a/src/cairo-path-fixed-private.h
+++ b/src/cairo-path-fixed-private.h
@@ -54,9 +54,9 @@ typedef char cairo_path_op_t;
 
 typedef struct _cairo_path_buf {
     struct _cairo_path_buf *next, *prev;
-    int buf_size;
-    int num_ops;
-    int num_points;
+    unsigned int buf_size;
+    unsigned int num_ops;
+    unsigned int num_points;
 
     cairo_path_op_t *op;
     cairo_point_t *points;
@@ -90,8 +90,8 @@ _cairo_path_fixed_equal (const cairo_path_fixed_t *a,
 
 typedef struct _cairo_path_fixed_iter {
     cairo_path_buf_t *buf;
-    int n_op;
-    int n_point;
+    unsigned int n_op;
+    unsigned int n_point;
 } cairo_path_fixed_iter_t;
 
 cairo_private void