xref: /llvm-project/libcxx/test/std/numerics/rand/rand.eng/rand.eng.mers/default.pass.cpp (revision 57b08b0944046a6a57ee9b7b479181f548a5b9b4)
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 // <random>
10 
11 // template <class UIntType, size_t w, size_t n, size_t m, size_t r,
12 //           UIntType a, size_t u, UIntType d, size_t s,
13 //           UIntType b, size_t t, UIntType c, size_t l, UIntType f>
14 // class mersenne_twister_engine;
15 
16 // explicit mersenne_twister_engine();
17 
18 #include <random>
19 #include <sstream>
20 #include <cassert>
21 
22 void
23 test1()
24 {
25     std::mt19937 e1;
26     std::mt19937 e2(std::mt19937::default_seed);
27     assert(e1 == e2);
28     assert(e1() == 3499211612u);
29 }
30 
31 void
32 test2()
33 {
34     std::mt19937_64 e1;
35     std::mt19937_64 e2(std::mt19937_64::default_seed);
36     assert(e1 == e2);
37     assert(e1() == 14514284786278117030ull);
38 }
39 
40 int main()
41 {
42     test1();
43     test2();
44 }
45