cxx/test/numerics/rand/rand.adapt/rand.adapt.ibits/values.pass.cpp

//===----------------------------------------------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

// <random>

// template<class Engine, size_t w, class UIntType>
// class independent_bits_engine
// {
// public:
//     // types
//     typedef UIntType result_type;
//
//     // engine characteristics
//     static constexpr result_type min() { return 0; }
//     static constexpr result_type max() { return 2^w - 1; }

#include <random>
#include <type_traits>
#include <cassert>

void
test1()
{
    typedef std::independent_bits_engine<std::ranlux24, 32, unsigned> E;
    /*static_*/assert((E::min() == 0)/*, ""*/);
    /*static_*/assert((E::max() == 0xFFFFFFFF)/*, ""*/);
}

void
test2()
{
    typedef std::independent_bits_engine<std::ranlux48, 64, unsigned long long> E;
    /*static_*/assert((E::min() == 0)/*, ""*/);
    /*static_*/assert((E::max() == 0xFFFFFFFFFFFFFFFFull)/*, ""*/);
}

int main()
{
    test1();
    test2();
}