1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // UNSUPPORTED: no-localization
10
11 // <random>
12
13 // template<class Engine, size_t k>
14 // class shuffle_order_engine
15
16 // template <class charT, class traits,
17 // class Engine, size_t k>
18 // basic_ostream<charT, traits>&
19 // operator<<(basic_ostream<charT, traits>& os,
20 // const shuffle_order_engine<Engine, k>& x);
21 //
22 // template <class charT, class traits,
23 // class Engine, size_t k>
24 // basic_istream<charT, traits>&
25 // operator>>(basic_istream<charT, traits>& is,
26 // shuffle_order_engine<Engine, k>& x);
27
28 #include <random>
29 #include <sstream>
30 #include <cassert>
31
32 #include "test_macros.h"
33
34 void
test1()35 test1()
36 {
37 typedef std::knuth_b E;
38 E e1;
39 e1.discard(100);
40 std::ostringstream os;
41 os << e1;
42 std::istringstream is(os.str());
43 E e2;
44 is >> e2;
45 assert(e1 == e2);
46 }
47
main(int,char **)48 int main(int, char**)
49 {
50 test1();
51
52 return 0;
53 }
54