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, UIntType a, UIntType c, UIntType m>
13 // class linear_congruential_engine;
14
15 // linear_congruential_engine();
16
17 #include <random>
18 #include <cassert>
19
20 template <class T, T a, T c, T m>
21 void
test1()22 test1()
23 {
24 typedef std::linear_congruential_engine<T, a, c, m> LCE;
25 LCE e1;
26 LCE e2;
27 e2.seed();
28 assert(e1 == e2);
29 }
30
31 template <class T>
32 void
test()33 test()
34 {
35 test1<T, 0, 0, 0>();
36 test1<T, 0, 1, 2>();
37 test1<T, 1, 1, 2>();
38 const T M(static_cast<T>(-1));
39 test1<T, 0, 0, M>();
40 test1<T, 0, M-2, M>();
41 test1<T, 0, M-1, M>();
42 test1<T, M-2, 0, M>();
43 test1<T, M-2, M-2, M>();
44 test1<T, M-2, M-1, M>();
45 test1<T, M-1, 0, M>();
46 test1<T, M-1, M-2, M>();
47 test1<T, M-1, M-1, M>();
48 }
49
main()50 int main()
51 {
52 test<unsigned short>();
53 test<unsigned int>();
54 test<unsigned long>();
55 test<unsigned long long>();
56 }
57