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soft_heap.cc
1 // Copyright (C) 2009 EPITA Research and Development Laboratory (LRDE)
2 //
3 // This file is part of Olena.
4 //
5 // Olena is free software: you can redistribute it and/or modify it under
6 // the terms of the GNU General Public License as published by the Free
7 // Software Foundation, version 2 of the License.
8 //
9 // Olena is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 // General Public License for more details.
13 //
14 // You should have received a copy of the GNU General Public License
15 // along with Olena. If not, see <http://www.gnu.org/licenses/>.
16 //
17 // As a special exception, you may use this file as part of a free
18 // software project without restriction. Specifically, if other files
19 // instantiate templates or use macros or inline functions from this
20 // file, or you compile this file and link it with other files to produce
21 // an executable, this file does not by itself cause the resulting
22 // executable to be covered by the GNU General Public License. This
23 // exception does not however invalidate any other reasons why the
24 // executable file might be covered by the GNU General Public License.
25 
26 #include <mln/util/soft_heap.hh>
27 #include <mln/core/alias/point2d.hh>
28 #include <mln/value/int_u8.hh>
29 
30 using mln::point2d;
31 
32 point2d p[] = { point2d(4,5), point2d(3,4), point2d(3,2),
33  point2d(1,6), point2d(2,3), point2d(3,5),
34  point2d(2,4), point2d(7,2), point2d(9,6),
35  point2d(7,3) };
36 
37 point2d res[] = { point2d(1,6), point2d(2,3), point2d(2,4),
38  point2d(3,2), point2d(3,4), point2d(3,5),
39  point2d(4,5), point2d(7,2), point2d(7,3),
40  point2d(9,6) };
41 
42 
43 int main()
44 {
45  using namespace mln;
46 
48 
49  for (unsigned i = 0; i < 5; ++i)
50  fh.push(p[i]);
51 
53  for (unsigned i = 5; i < 10; ++i)
54  fh2.push(p[i]);
55 
56  // Merge fh in fh2.
57  fh2.push(fh);
58 
59  // fh2 now holds both its elements and fh's.
60  unsigned i = 0;
61  while (!fh2.is_empty())
62  mln_assertion(fh2.pop_front() == res[i++]);
63 
64  // fh must be empty, fh2 now holds its elements.
65  mln_assertion(fh.is_empty());
66 
67  for (unsigned i = 5; i < 10; ++i)
68  fh2.push(p[i]);
69 
70  fh2.clear();
71  mln_assertion(fh2.nelements() == 0);
72  mln_assertion(fh2.is_empty());
73 }