50 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9// UNSUPPORTED: no-localization10 11// <random>12 13// template <class UIntType, UIntType a, UIntType c, UIntType m>14// class linear_congruential_engine;15 16// template <class charT, class traits,17// class UIntType, UIntType a, UIntType c, UIntType m>18// basic_ostream<charT, traits>&19// operator<<(basic_ostream<charT, traits>& os,20// const linear_congruential_engine<UIntType, a, c, m>& x);21//22// template <class charT, class traits,23// class UIntType, UIntType a, UIntType c, UIntType m>24// basic_istream<charT, traits>&25// operator>>(basic_istream<charT, traits>& is,26// linear_congruential_engine<UIntType, a, c, m>& x);27 28#include <random>29#include <sstream>30#include <cassert>31 32#include "test_macros.h"33 34int main(int, char**)35{36 {37 typedef std::linear_congruential_engine<unsigned, 48271, 0, 2147483647> E;38 E e1;39 e1.discard(100);40 std::ostringstream os;41 os << e1;42 std::istringstream is(os.str());43 E e2;44 is >> e2;45 assert(e1 == e2);46 }47 48 return 0;49}50