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
23 void
test1()24 test1()
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
37 void
test2()38 test2()
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
main()51 int main()
52 {
53 test1();
54 test2();
55 }
56