harfbuzz/src/test-iter.cc

85 lines
2.4 KiB
C++

/*
* 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;
}