commit 8165f2765b93e99577ecc79b7956ae38c614bc78
author Behdad Esfahbod <behdad@behdad.org> Wed Jan 02 22:50:36 2013 -0600
committer Behdad Esfahbod <behdad@behdad.org> Wed Jan 02 22:50:36 2013 -0600
tree 092694138f6220ef6e7b485fd06a67fd1a6e167b
parent b9d28f696c433b94c5ffbad8d7c87cf3acff4056

[tests] Start adding tests for hb-set.h

Fails now.  Fixing.

src/hb-set-private.hh

diff --git a/src/hb-set-private.hh b/src/hb-set-private.hh
index c736b69..8e03d68 100644
--- a/src/hb-set-private.hh
+++ b/src/hb-set-private.hh
@@ -137,6 +137,7 @@
 {
   hb_object_header_t header;
   ASSERT_POD ();
+  bool in_error;
 
   inline void init (void) {
     header.init ();
@@ -224,6 +225,11 @@
     for (unsigned int i = 0; i < ELTS; i++)
       elts[i] ^= other->elts[i];
   }
+  inline void invert (void)
+  {
+    for (unsigned int i = 0; i < ELTS; i++)
+      elts[i] = ~elts[i];
+  }
   inline bool next (hb_codepoint_t *codepoint) const
   {
     if (unlikely (*codepoint == SENTINEL)) {

src/hb-set.cc

diff --git a/src/hb-set.cc b/src/hb-set.cc
index 93f983a..5f427a5 100644
--- a/src/hb-set.cc
+++ b/src/hb-set.cc
@@ -49,6 +49,7 @@
 {
   static const hb_set_t _hb_set_nil = {
     HB_OBJECT_HEADER_STATIC,
+    true, /* in_error */
 
     {0} /* elts */
   };
@@ -93,7 +94,7 @@
 hb_bool_t
 hb_set_allocation_successful (const hb_set_t  *set HB_UNUSED)
 {
-  return true;
+  return !set->in_error;
 }
 
 void
@@ -187,6 +188,12 @@
   set->symmetric_difference (other);
 }
 
+void
+hb_set_invert (hb_set_t *set)
+{
+  set->invert ();
+}
+
 unsigned int
 hb_set_get_population (const hb_set_t *set)
 {

src/hb-set.h

diff --git a/src/hb-set.h b/src/hb-set.h
index ec3d119..291e249 100644
--- a/src/hb-set.h
+++ b/src/hb-set.h
@@ -121,6 +121,9 @@
 hb_set_symmetric_difference (hb_set_t       *set,
 			     const hb_set_t *other);
 
+void
+hb_set_invert (hb_set_t *set);
+
 unsigned int
 hb_set_get_population (const hb_set_t *set);