Imported Upstream version 1.7.6

[platform/upstream/harfbuzz.git] / src / hb-set.h

diff --git a/src/hb-set.h b/src/hb-set.h
index 2164c1a..b0f82f8 100644 (file)
--- a/src/hb-set.h
+++ b/src/hb-set.h
@@ -126,31 +126,39 @@ HB_EXTERN void
 hb_set_symmetric_difference (hb_set_t       *set,
                             const hb_set_t *other);
 
-HB_EXTERN void
-hb_set_invert (hb_set_t *set);
-
 HB_EXTERN unsigned int
 hb_set_get_population (const hb_set_t *set);
 
-/* Returns -1 if set empty. */
+/* Returns HB_SET_VALUE_INVALID if set empty. */
 HB_EXTERN hb_codepoint_t
 hb_set_get_min (const hb_set_t *set);
 
-/* Returns -1 if set empty. */
+/* Returns HB_SET_VALUE_INVALID if set empty. */
 HB_EXTERN hb_codepoint_t
 hb_set_get_max (const hb_set_t *set);
 
-/* Pass -1 in to get started. */
+/* Pass HB_SET_VALUE_INVALID in to get started. */
 HB_EXTERN hb_bool_t
 hb_set_next (const hb_set_t *set,
             hb_codepoint_t *codepoint);
 
-/* Pass -1 for first and last to get started. */
+/* Pass HB_SET_VALUE_INVALID in to get started. */
+HB_EXTERN hb_bool_t
+hb_set_previous (const hb_set_t *set,
+                hb_codepoint_t *codepoint);
+
+/* Pass HB_SET_VALUE_INVALID for first and last to get started. */
 HB_EXTERN hb_bool_t
 hb_set_next_range (const hb_set_t *set,
                   hb_codepoint_t *first,
                   hb_codepoint_t *last);
 
+/* Pass HB_SET_VALUE_INVALID for first and last to get started. */
+HB_EXTERN hb_bool_t
+hb_set_previous_range (const hb_set_t *set,
+                      hb_codepoint_t *first,
+                      hb_codepoint_t *last);
+
 
 HB_END_DECLS