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//===----------------------------------------------------------------------===//
//
// 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, size_t w, size_t s, size_t r>
// class subtract_with_carry_engine
// {
// public:
// // types
// typedef UIntType result_type;
//
// // engine characteristics
// static constexpr size_t word_size = w;
// static constexpr size_t short_lag = s;
// static constexpr size_t long_lag = r;
// static constexpr result_type min() { return 0; }
// static constexpr result_type max() { return m-1; }
// static constexpr result_type default_seed = 19780503u;
#include <random>
#include <type_traits>
#include <cassert>
#include "test_macros.h"
template <class T>
void where(const T &) {}
void
test1()
{
typedef std::ranlux24_base E;
static_assert((E::word_size == 24), "");
static_assert((E::short_lag == 10), "");
static_assert((E::long_lag == 24), "");
#if TEST_STD_VER >= 11
static_assert((E::min() == 0), "");
static_assert((E::max() == 0xFFFFFF), "");
#else
assert((E::min() == 0));
assert((E::max() == 0xFFFFFF));
#endif
static_assert((E::default_seed == 19780503u), "");
where(E::word_size);
where(E::short_lag);
where(E::long_lag);
where(E::default_seed);
}
void
test2()
{
typedef std::ranlux48_base E;
static_assert((E::word_size == 48), "");
static_assert((E::short_lag == 5), "");
static_assert((E::long_lag == 12), "");
#if TEST_STD_VER >= 11
static_assert((E::min() == 0), "");
static_assert((E::max() == 0xFFFFFFFFFFFFull), "");
#else
assert((E::min() == 0));
assert((E::max() == 0xFFFFFFFFFFFFull));
#endif
static_assert((E::default_seed == 19780503u), "");
where(E::word_size);
where(E::short_lag);
where(E::long_lag);
where(E::default_seed);
}
int main()
{
test1();
test2();
}
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