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+/*
+ * Copyright © 2018 Google, Inc.
+ *
+ * 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.
+ *
+ * Google Author(s): Behdad Esfahbod
+ */
+
+#include "hb.hh"
+#include "hb-iter.hh"
+
+#include "hb-array.hh"
+#include "hb-set.hh"
+
+
+template <typename T>
+struct array_iter_t : hb_iter_t<array_iter_t<T>, T>, hb_iter_mixin_t<array_iter_t<T>, T>
+{
+ array_iter_t (hb_array_t<T> arr_) : arr (arr_) {}
+
+ typedef T __item_type__;
+ T& __item_at__ (unsigned i) const { return arr[i]; }
+ void __forward__ (unsigned n) { arr += n; }
+ void __rewind__ (unsigned n) { arr -= n; }
+ unsigned __len__ () const { return arr.length; }
+ bool __random_access__ () const { return true; }
+
+ private:
+ hb_array_t<T> arr;
+};
+
+template <typename T>
+struct some_array_t
+{
+ some_array_t (hb_array_t<T> arr_) : arr (arr_) {}
+
+ typedef array_iter_t<T> iter_t;
+ array_iter_t<T> iter () { return array_iter_t<T> (arr); }
+ operator array_iter_t<T> () { return iter (); }
+ operator hb_iter_t<array_iter_t<T> > () { return iter (); }
+
+ private:
+ hb_array_t<T> arr;
+};
+
+int
+main (int argc, char **argv)
+{
+ const int src[10] = {};
+ int dst[20];
+ hb_vector_t<int> v;
+
+ array_iter_t<const int> s (src); /* Implicit conversion from static array. */
+ array_iter_t<const int> s2 (v); /* Implicit conversion from vector. */
+ array_iter_t<int> t (dst);
+
+ some_array_t<const int> a (src);
+
+ s2 = s;
+
+ hb_fill (t, 42);
+ hb_copy (t, s);
+ // hb_copy (t, a.iter ());
+
+ return 0;
+}