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diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/test-multimap.cc b/Build/source/libs/harfbuzz/harfbuzz-src/src/test-multimap.cc
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+/*
+ * Copyright © 2022 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-multimap.hh"
+
+int
+main (int argc, char **argv)
+{
+ hb_multimap_t m;
+
+ assert (m.get (10).length == 0);
+
+ m.add (10, 11);
+ assert (m.get (10).length == 1);
+
+ m.add (10, 12);
+ assert (m.get (10).length == 2);
+
+ m.add (10, 13);
+ assert (m.get (10).length == 3);
+ assert (m.get (10)[0] == 11);
+ assert (m.get (10)[1] == 12);
+ assert (m.get (10)[2] == 13);
+
+ assert (m.get (11).length == 0);
+ m.add (11, 14);
+ assert (m.get (10).length == 3);
+ assert (m.get (11).length == 1);
+ assert (m.get (12).length == 0);
+ assert (m.get (10)[0] == 11);
+ assert (m.get (10)[1] == 12);
+ assert (m.get (10)[2] == 13);
+ assert (m.get (11)[0] == 14);
+ assert (m.get (12)[0] == 0); // Array fallback value
+
+ return 0;
+}