1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <random>
11
12// template <class UIntType, size_t w, size_t n, size_t m, size_t r,
13//           UIntType a, size_t u, UIntType d, size_t s,
14//           UIntType b, size_t t, UIntType c, size_t l, UIntType f>
15// class mersenne_twister_engine;
16
17// void discard(unsigned long long z);
18
19#include <random>
20#include <sstream>
21#include <cassert>
22
23void
24test1()
25{
26    std::mt19937 e1;
27    std::mt19937 e2 = e1;
28    assert(e1 == e2);
29    e1.discard(3);
30    assert(e1 != e2);
31    e2();
32    e2();
33    e2();
34    assert(e1 == e2);
35}
36
37void
38test2()
39{
40    std::mt19937_64 e1;
41    std::mt19937_64 e2 = e1;
42    assert(e1 == e2);
43    e1.discard(3);
44    assert(e1 != e2);
45    e2();
46    e2();
47    e2();
48    assert(e1 == e2);
49}
50
51int main()
52{
53    test1();
54    test2();
55}
56