xref: /llvm-project-15.0.7/libcxx/test/std/numerics/rand/rand.adapt/rand.adapt.ibits/default.pass.cpp (revision 7fc6a556)

//===----------------------------------------------------------------------===//
//
// 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 Engine, size_t w, class UIntType>
// class independent_bits_engine

// explicit independent_bits_engine();

#include <random>
#include <cassert>

#include "test_macros.h"

void
test1()
{
    std::independent_bits_engine<std::ranlux24, 32, unsigned> e1;
    std::independent_bits_engine<std::ranlux24, 32, unsigned> e2(std::ranlux24_base::default_seed);
    assert(e1 == e2);
    assert(e1() == 2066486613);
}

void
test2()
{
    std::independent_bits_engine<std::ranlux48, 64, unsigned long long> e1;
    std::independent_bits_engine<std::ranlux48, 64, unsigned long long> e2(std::ranlux48_base::default_seed);
    assert(e1 == e2);
    assert(e1() == 18223106896348967647ull);
}

int main(int, char**)
{
    test1();
    test2();

  return 0;
}