1// { dg-options "-std=c++0x" }
2// { dg-require-cstdint "" }
3//
4// 2008-11-24  Edward M. Smith-Rowland <3dw4rd@verizon.net>
5//
6// Copyright (C) 2008, 2009 Free Software Foundation, Inc.
7//
8// This file is part of the GNU ISO C++ Library.  This library is free
9// software; you can redistribute it and/or modify it under the
10// terms of the GNU General Public License as published by the
11// Free Software Foundation; either version 3, or (at your option)
12// any later version.
13//
14// This library is distributed in the hope that it will be useful,
15// but WITHOUT ANY WARRANTY; without even the implied warranty of
16// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17// GNU General Public License for more details.
18//
19// You should have received a copy of the GNU General Public License along
20// with this library; see the file COPYING3.  If not see
21// <http://www.gnu.org/licenses/>.
22
23// 26.4.4.1 class template discard_block_engine [rand.adapt.disc]
24// 26.4.2.3 concept RandomNumberEngineAdaptor [rand.concept.adapt]
25
26#include <random>
27#include <sstream>
28#include <testsuite_hooks.h>
29
30void
31test01()
32{
33  bool test __attribute__((unused)) = true;
34
35  std::stringstream str;
36  std::discard_block_engine
37    <
38    std::subtract_with_carry_engine<unsigned long, 24, 10, 24>,
39    389, 24
40    > u, v;
41
42  u(); // advance
43  str << u;
44
45  VERIFY( !(u == v) );
46
47  str >> v;
48  VERIFY( u == v );
49}
50
51int main()
52{
53  test01();
54  return 0;
55}
56