f5256e16df
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103516 91177308-0d34-0410-b5e6-96231b3b80d8
60 lines
1.6 KiB
C++
60 lines
1.6 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <random>
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// template<class UIntType, size_t w, size_t s, size_t r>
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// class subtract_with_carry_engine
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// {
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// public:
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// // types
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// typedef UIntType result_type;
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//
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// // engine characteristics
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// static constexpr size_t word_size = w;
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// static constexpr size_t short_lag = s;
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// static constexpr size_t long_lag = r;
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// static constexpr result_type min() { return 0; }
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// static constexpr result_type max() { return m-1; }
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// static constexpr result_type default_seed = 19780503u;
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#include <random>
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#include <type_traits>
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#include <cassert>
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void
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test1()
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{
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typedef std::ranlux24_base E;
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static_assert((E::word_size == 24), "");
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static_assert((E::short_lag == 10), "");
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static_assert((E::long_lag == 24), "");
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/*static_*/assert((E::min() == 0)/*, ""*/);
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/*static_*/assert((E::max() == 0xFFFFFF)/*, ""*/);
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static_assert((E::default_seed == 19780503u), "");
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}
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void
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test2()
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{
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typedef std::ranlux48_base E;
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static_assert((E::word_size == 48), "");
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static_assert((E::short_lag == 5), "");
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static_assert((E::long_lag == 12), "");
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/*static_*/assert((E::min() == 0)/*, ""*/);
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/*static_*/assert((E::max() == 0xFFFFFFFFFFFFull)/*, ""*/);
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static_assert((E::default_seed == 19780503u), "");
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}
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int main()
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{
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test1();
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test2();
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}
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