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 Engine, size_t w, class UIntType>
13 // class independent_bits_engine
14 // {
15 // public:
16 //     // types
17 //     typedef UIntType result_type;
18 //
19 //     // engine characteristics
20 //     static constexpr result_type min() { return 0; }
21 //     static constexpr result_type max() { return 2^w - 1; }
22 
23 #include <random>
24 #include <type_traits>
25 #include <cassert>
26 
27 void
28 test1()
29 {
30     typedef std::independent_bits_engine<std::ranlux24, 32, unsigned> E;
31 #if TEST_STD_VER >= 11
32     static_assert((E::min() == 0), "");
33     static_assert((E::max() == 0xFFFFFFFF), "");
34 #else
35     assert((E::min() == 0));
36     assert((E::max() == 0xFFFFFFFF));
37 #endif
38 }
39 
40 void
41 test2()
42 {
43     typedef std::independent_bits_engine<std::ranlux48, 64, unsigned long long> E;
44 #if TEST_STD_VER >= 11
45     static_assert((E::min() == 0), "");
46     static_assert((E::max() == 0xFFFFFFFFFFFFFFFFull), "");
47 #else
48     assert((E::min() == 0));
49     assert((E::max() == 0xFFFFFFFFFFFFFFFFull));
50 #endif
51 }
52 
53 int main()
54 {
55     test1();
56     test2();
57 }
58