Howard Hinnant | 3e51952 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1 | //===----------------------------------------------------------------------===// |
| 2 | // |
Howard Hinnant | 5b08a8a | 2010-05-11 21:36:01 +0000 | [diff] [blame] | 3 | // The LLVM Compiler Infrastructure |
Howard Hinnant | 3e51952 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 4 | // |
Howard Hinnant | 412dbeb | 2010-11-16 22:09:02 +0000 | [diff] [blame] | 5 | // This file is dual licensed under the MIT and the University of Illinois Open |
| 6 | // Source Licenses. See LICENSE.TXT for details. |
Howard Hinnant | 3e51952 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 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; |
Howard Hinnant | a0eaf60 | 2010-08-22 00:42:21 +0000 | [diff] [blame] | 18 | // |
Howard Hinnant | 3e51952 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 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 | |
Howard Hinnant | 16694b5 | 2012-12-12 21:14:28 +0000 | [diff] [blame] | 31 | template <class _Tp> |
| 32 | void where(const _Tp &) {} |
| 33 | |
Howard Hinnant | 3e51952 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 34 | void |
| 35 | test1() |
| 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), ""); |
Howard Hinnant | 16694b5 | 2012-12-12 21:14:28 +0000 | [diff] [blame] | 44 | where(E::word_size); |
| 45 | where(E::short_lag); |
| 46 | where(E::long_lag); |
| 47 | where(E::default_seed); |
Howard Hinnant | 3e51952 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 48 | } |
| 49 | |
| 50 | void |
| 51 | test2() |
| 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), ""); |
Howard Hinnant | 16694b5 | 2012-12-12 21:14:28 +0000 | [diff] [blame] | 60 | where(E::word_size); |
| 61 | where(E::short_lag); |
| 62 | where(E::long_lag); |
| 63 | where(E::default_seed); |
Howard Hinnant | 3e51952 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 64 | } |
| 65 | |
| 66 | int main() |
| 67 | { |
| 68 | test1(); |
| 69 | test2(); |
| 70 | } |