| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <random> |
| |
| // template <class UIntType, UIntType a, UIntType c, UIntType m> |
| // class linear_congruential_engine; |
| |
| // explicit linear_congruential_engine(result_type s = default_seed); |
| |
| #include <random> |
| #include <sstream> |
| #include <cassert> |
| |
| template <class T> |
| void |
| test1() |
| { |
| // c % m != 0 && s % m != 0 |
| { |
| typedef std::linear_congruential_engine<T, 2, 3, 7> E; |
| E e(5); |
| std::ostringstream os; |
| os << e; |
| assert(os.str() == "5"); |
| } |
| { |
| typedef std::linear_congruential_engine<T, 2, 3, 0> E; |
| E e(5); |
| std::ostringstream os; |
| os << e; |
| assert(os.str() == "5"); |
| } |
| { |
| typedef std::linear_congruential_engine<T, 2, 3, 4> E; |
| E e(5); |
| std::ostringstream os; |
| os << e; |
| assert(os.str() == "1"); |
| } |
| } |
| |
| template <class T> |
| void |
| test2() |
| { |
| // c % m != 0 && s % m == 0 |
| { |
| typedef std::linear_congruential_engine<T, 2, 3, 7> E; |
| E e(7); |
| std::ostringstream os; |
| os << e; |
| assert(os.str() == "0"); |
| } |
| { |
| typedef std::linear_congruential_engine<T, 2, 3, 0> E; |
| E e(0); |
| std::ostringstream os; |
| os << e; |
| assert(os.str() == "0"); |
| } |
| { |
| typedef std::linear_congruential_engine<T, 2, 3, 4> E; |
| E e(4); |
| std::ostringstream os; |
| os << e; |
| assert(os.str() == "0"); |
| } |
| } |
| |
| template <class T> |
| void |
| test3() |
| { |
| // c % m == 0 && s % m != 0 |
| { |
| typedef std::linear_congruential_engine<T, 2, 0, 7> E; |
| E e(3); |
| std::ostringstream os; |
| os << e; |
| assert(os.str() == "3"); |
| } |
| { |
| typedef std::linear_congruential_engine<T, 2, 0, 0> E; |
| E e(5); |
| std::ostringstream os; |
| os << e; |
| assert(os.str() == "5"); |
| } |
| { |
| typedef std::linear_congruential_engine<T, 2, 0, 4> E; |
| E e(7); |
| std::ostringstream os; |
| os << e; |
| assert(os.str() == "3"); |
| } |
| } |
| |
| template <class T> |
| void |
| test4() |
| { |
| // c % m == 0 && s % m == 0 |
| { |
| typedef std::linear_congruential_engine<T, 2, 0, 7> E; |
| E e(7); |
| std::ostringstream os; |
| os << e; |
| assert(os.str() == "1"); |
| } |
| { |
| typedef std::linear_congruential_engine<T, 2, 0, 0> E; |
| E e(0); |
| std::ostringstream os; |
| os << e; |
| assert(os.str() == "1"); |
| } |
| { |
| typedef std::linear_congruential_engine<T, 2, 0, 4> E; |
| E e(8); |
| std::ostringstream os; |
| os << e; |
| assert(os.str() == "1"); |
| } |
| } |
| |
| int main() |
| { |
| test1<unsigned short>(); |
| test1<unsigned int>(); |
| test1<unsigned long>(); |
| test1<unsigned long long>(); |
| |
| test2<unsigned short>(); |
| test2<unsigned int>(); |
| test2<unsigned long>(); |
| test2<unsigned long long>(); |
| |
| test3<unsigned short>(); |
| test3<unsigned int>(); |
| test3<unsigned long>(); |
| test3<unsigned long long>(); |
| |
| test4<unsigned short>(); |
| test4<unsigned int>(); |
| test4<unsigned long>(); |
| test4<unsigned long long>(); |
| } |