1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // <random> 10 11 // template <class UIntType, UIntType a, UIntType c, UIntType m> 12 // class linear_congruential_engine; 13 14 // template <class charT, class traits, 15 // class UIntType, UIntType a, UIntType c, UIntType m> 16 // basic_ostream<charT, traits>& 17 // operator<<(basic_ostream<charT, traits>& os, 18 // const linear_congruential_engine<UIntType, a, c, m>& x); 19 // 20 // template <class charT, class traits, 21 // class UIntType, UIntType a, UIntType c, UIntType m> 22 // basic_istream<charT, traits>& 23 // operator>>(basic_istream<charT, traits>& is, 24 // linear_congruential_engine<UIntType, a, c, m>& x); 25 26 #include <random> 27 #include <sstream> 28 #include <cassert> 29 30 #include "test_macros.h" 31 32 int main(int, char**) 33 { 34 { 35 typedef std::linear_congruential_engine<unsigned, 48271, 0, 2147483647> E; 36 E e1; 37 e1.discard(100); 38 std::ostringstream os; 39 os << e1; 40 std::istringstream is(os.str()); 41 E e2; 42 is >> e2; 43 assert(e1 == e2); 44 } 45 46 return 0; 47 } 48