Update Harfbuzz to version 4.2.1

[ChangeLog][QtGui][Text] Updated the Harfbuzz code included with
Qt to version 4.2.1.

Pick-to: 6.2 6.3
Fixes: QTBUG-103603
Change-Id: I45fdde8fd0772e4470304c5f6f5a876666356d04
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

1 files changed, 97 insertions, 0 deletions

diff --git a/src/3rdparty/harfbuzz-ng/src/test-set.cc b/src/3rdparty/harfbuzz-ng/src/test-set.cc
new file mode 100644
index 0000000000..286f1a9976
--- /dev/null
+++ b/src/3rdparty/harfbuzz-ng/src/test-set.cc
@@ -0,0 +1,97 @@
+/*
+ * Copyright © 2021  Behdad Esfahbod
+ *
+ *  This is part of HarfBuzz, a text shaping library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ */
+
+#include "hb.hh"
+#include "hb-set.hh"
+
+
+int
+main (int argc, char **argv)
+{
+
+  /* Test copy constructor. */
+  {
+    hb_set_t v1 {1, 2};
+    hb_set_t v2 {v1};
+    assert (v1.get_population () == 2);
+    assert (v2.get_population () == 2);
+  }
+
+  /* Test copy assignment. */
+  {
+    hb_set_t v1 {1, 2};
+    hb_set_t v2 = v1;
+    assert (v1.get_population () == 2);
+    assert (v2.get_population () == 2);
+  }
+
+  /* Test move constructor. */
+  {
+    hb_set_t v {hb_set_t {1, 2}};
+    assert (v.get_population () == 2);
+  }
+
+  /* Test move assignment. */
+  {
+    hb_set_t v;
+    v = hb_set_t {1, 2};
+    assert (v.get_population () == 2);
+  }
+
+  /* Test initializing from iterable. */
+  {
+    hb_set_t s;
+
+    s.add (18);
+    s.add (12);
+
+    hb_set_t v (s);
+
+    assert (v.get_population () == 2);
+  }
+
+  /* Test initializing from iterator. */
+  {
+    hb_set_t s;
+
+    s.add (18);
+    s.add (12);
+
+    hb_set_t v (hb_iter (s));
+
+    assert (v.get_population () == 2);
+  }
+
+  /* Test initializing from initializer list and swapping. */
+  {
+    hb_set_t v1 {1, 2, 3};
+    hb_set_t v2 {4, 5};
+    hb_swap (v1, v2);
+    assert (v1.get_population () == 2);
+    assert (v2.get_population () == 3);
+  }
+
+  return 0;
+}