You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
This repo is archived. You can view files and clone it, but cannot push or open issues/pull-requests.
libcxx_old/test/std/numerics/rand/rand.eng/rand.eng.lcong/seed_sseq.pass.cpp

43 lines
1.2 KiB
C++

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <random>
// template <class UIntType, UIntType a, UIntType c, UIntType m>
// class linear_congruential_engine;
// template<class Sseq> void seed(Sseq& q);
#include <random>
#include <cassert>
#include "test_macros.h"
int main(int, char**)
{
{
unsigned a[] = {3, 5, 7};
std::seed_seq sseq(a, a+3);
std::linear_congruential_engine<unsigned, 5, 7, 11> e1;
std::linear_congruential_engine<unsigned, 5, 7, 11> e2(4);
assert(e1 != e2);
e1.seed(sseq);
assert(e1 == e2);
}
{
unsigned a[] = {3, 5, 7, 9, 11};
std::seed_seq sseq(a, a+5);
typedef std::linear_congruential_engine<unsigned long long, 1, 1, 0x200000001ULL> E;
E e1(4309005589);
E e2(sseq);
assert(e1 == e2);
}
return 0;
}