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 31 template <class _Tp> 32 void where(const _Tp &) {} 33 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), ""); 44 where(E::word_size); 45 where(E::short_lag); 46 where(E::long_lag); 47 where(E::default_seed); 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), ""); 60 where(E::word_size); 61 where(E::short_lag); 62 where(E::long_lag); 63 where(E::default_seed); 64 } 65 66 int main() 67 { 68 test1(); 69 test2(); 70 } 71
