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 w, class UIntType>
14// class independent_bits_engine
15
16// template <class charT, class traits,
17// class Engine, size_t w, class UIntType>
18// basic_ostream<charT, traits>&
19// operator<<(basic_ostream<charT, traits>& os,
20// const independent_bits_engine<Engine, w, UIntType>& x);
21//
22// template <class charT, class traits,
23// class Engine, size_t w, class UIntType>
24// basic_istream<charT, traits>&
25// operator>>(basic_istream<charT, traits>& is,
26// independent_bits_engine<Engine, w, UIntType>& x);
27
28#include <random>
29#include <sstream>
30#include <cassert>
31
32#include "test_macros.h"
33
34void
35test1()
36{
37 typedef std::independent_bits_engine<std::ranlux24, 32, unsigned> 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
48void
49test2()
50{
51 typedef std::independent_bits_engine<std::ranlux48, 64, unsigned long long> E;
52 E e1;
53 e1.discard(z: 100);
54 std::ostringstream os;
55 os << e1;
56 std::istringstream is(os.str());
57 E e2;
58 is >> e2;
59 assert(e1 == e2);
60}
61
62int main(int, char**)
63{
64 test1();
65 test2();
66
67 return 0;
68}
69

source code of libcxx/test/std/numerics/rand/rand.adapt/rand.adapt.ibits/io.pass.cpp