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 s, size_t r>
13// class subtract_with_carry_engine
14// {
15// public:
16//     // types
17//     typedef UIntType result_type;
18//
19//     // engine characteristics
20//     static constexpr size_t word_size = w;
21//     static constexpr size_t short_lag = s;
22//     static constexpr size_t long_lag = r;
23//     static constexpr result_type min() { return 0; }
24//     static constexpr result_type max() { return m-1; }
25//     static constexpr result_type default_seed = 19780503u;
26
27#include <random>
28#include <type_traits>
29#include <cassert>
30
31template <class _Tp>
32void where(const _Tp &) {}
33
34void
35test1()
36{
37    typedef std::ranlux24_base E;
38    static_assert((E::word_size == 24), "");
39    static_assert((E::short_lag == 10), "");
40    static_assert((E::long_lag == 24), "");
41    /*static_*/assert((E::min() == 0)/*, ""*/);
42    /*static_*/assert((E::max() == 0xFFFFFF)/*, ""*/);
43    static_assert((E::default_seed == 19780503u), "");
44    where(E::word_size);
45    where(E::short_lag);
46    where(E::long_lag);
47    where(E::default_seed);
48}
49
50void
51test2()
52{
53    typedef std::ranlux48_base E;
54    static_assert((E::word_size == 48), "");
55    static_assert((E::short_lag == 5), "");
56    static_assert((E::long_lag == 12), "");
57    /*static_*/assert((E::min() == 0)/*, ""*/);
58    /*static_*/assert((E::max() == 0xFFFFFFFFFFFFull)/*, ""*/);
59    static_assert((E::default_seed == 19780503u), "");
60    where(E::word_size);
61    where(E::short_lag);
62    where(E::long_lag);
63    where(E::default_seed);
64}
65
66int main()
67{
68    test1();
69    test2();
70}
71