1// 2006-06-19  Paolo Carlini  <pcarlini@suse.de>
2//
3// Copyright (C) 2006, 2009 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library.  This library is free
6// software; you can redistribute it and/or modify it under the
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 3, or (at your option)
9// any later version.
10//
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14// GNU General Public License for more details.
15//
16// You should have received a copy of the GNU General Public License along
17// with this library; see the file COPYING3.  If not see
18// <http://www.gnu.org/licenses/>.
19
20// 5.1.4.5 class template discard_block [tr.rand.eng.disc]
21// 5.1.1 Table 16
22
23#include <sstream>
24#include <tr1/random>
25#include <testsuite_hooks.h>
26
27void
28test01()
29{
30  bool test __attribute__((unused)) = true;
31  using std::tr1::discard_block;
32  using std::tr1::subtract_with_carry;
33
34  std::stringstream str;
35  discard_block
36    <
37    subtract_with_carry<long, (1 << 24), 10, 24>,
38    389, 24
39    > u, v;
40
41  u(); // advance
42  str << u;
43
44  VERIFY( u != v );
45
46  str >> v;
47  VERIFY( u == v );
48}
49
50int main()
51{
52  test01();
53  return 0;
54}
55