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 p, size_t r> 13 // class discard_block_engine 14 // { 15 // public: 16 // // types 17 // typedef typename Engine::result_type result_type; 18 // 19 // // engine characteristics 20 // static constexpr size_t block_size = p; 21 // static constexpr size_t used_block = r; 22 // static constexpr result_type min() { return Engine::min(); } 23 // static constexpr result_type max() { return Engine::max(); } 24 25 #include <random> 26 #include <type_traits> 27 #include <cassert> 28 29 #include "test_macros.h" 30 31 template <class T> 32 void where(const T &) {} 33 34 void 35 test1() 36 { 37 typedef std::ranlux24 E; 38 static_assert((E::block_size == 223), ""); 39 static_assert((E::used_block == 23), ""); 40 #if TEST_STD_VER >= 11 41 static_assert((E::min() == 0), ""); 42 static_assert((E::max() == 0xFFFFFF), ""); 43 #else 44 assert((E::min() == 0)); 45 assert((E::max() == 0xFFFFFF)); 46 #endif 47 where(E::block_size); 48 where(E::used_block); 49 } 50 51 void 52 test2() 53 { 54 typedef std::ranlux48 E; 55 static_assert((E::block_size == 389), ""); 56 static_assert((E::used_block == 11), ""); 57 #if TEST_STD_VER >= 11 58 static_assert((E::min() == 0), ""); 59 static_assert((E::max() == 0xFFFFFFFFFFFFull), ""); 60 #else 61 assert((E::min() == 0)); 62 assert((E::max() == 0xFFFFFFFFFFFFull)); 63 #endif 64 where(E::block_size); 65 where(E::used_block); 66 } 67 68 int main() 69 { 70 test1(); 71 test2(); 72 } 73
