62 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// <random>10 11// template<class Engine, size_t p, size_t r>12// class discard_block_engine13 14// template<class Sseq> explicit discard_block_engine(Sseq& q);15 16// Serializing/deserializing the state of the RNG requires iostreams17// UNSUPPORTED: no-localization18 19#include <random>20#include <sstream>21#include <cassert>22 23#include "test_macros.h"24 25void26test1()27{28 const char* a = "13604817 711567 9760686 13278398 3323440 175548 5553651 "29 "3028863 10748297 2216688 275779 14778841 14438394 9483441 4229545 "30 "14657301 12636508 15978210 1653340 1718567 9272421 14302862 7940348 "31 "889045 0 0";32 unsigned as[] = {3, 5, 7};33 std::seed_seq sseq(as, as+3);34 std::ranlux24 e1(sseq);35 std::ostringstream os;36 os << e1;37 assert(os.str() == a);38}39 40void41test2()42{43 const char* a = "241408498702289 172342669275054 191026374555184 "44 "61020585639411 231929771458953 142769679250755 198672786411514 "45 "183712717244841 227473912549724 62843577252444 68782400568421 "46 "159248704678140 0 0";47 unsigned as[] = {3, 5, 7};48 std::seed_seq sseq(as, as+3);49 std::ranlux48 e1(sseq);50 std::ostringstream os;51 os << e1;52 assert(os.str() == a);53}54 55int main(int, char**)56{57 test1();58 test2();59 60 return 0;61}62