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[sprout.random] add Sseq version: constructor, seed

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This commit is contained in:
bolero-MURAKAMI 2013-11-09 17:39:57 +09:00
parent ab0731c4fc
commit b60a7aca9c
10 changed files with 495 additions and 152 deletions
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68
sprout/random/additive_combine.hpp
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@ -42,12 +42,10 @@ namespace sprout {
base2_type mlcg2_;
private:
SPROUT_CONSTEXPR additive_combine_engine(
base1_type const& mlcg1,
base2_type const& mlcg2,
base1_type const& mlcg1, base2_type const& mlcg2,
private_construct_t
)
: mlcg1_(mlcg1)
, mlcg2_(mlcg2)
: mlcg1_(mlcg1), mlcg2_(mlcg2)
{}
template<typename Random1, typename Random2>
SPROUT_CONSTEXPR sprout::random::random_result<additive_combine_engine> generate(Random1 const& rnd1, Random2 const& rnd2) const {
@ -57,25 +55,63 @@ namespace sprout {
: rnd1.result() - rnd2.result() + base1_type::modulus - 1
,
additive_combine_engine(
rnd1.engine(),
rnd2.engine(),
rnd1.engine(), rnd2.engine(),
private_construct_t()
)
);
}
public:
SPROUT_CONSTEXPR additive_combine_engine()
: mlcg1_()
, mlcg2_()
: mlcg1_(), mlcg2_()
{}
explicit SPROUT_CONSTEXPR additive_combine_engine(result_type const& seed)
: mlcg1_(seed)
, mlcg2_(seed)
explicit SPROUT_CONSTEXPR additive_combine_engine(result_type seed)
: mlcg1_(seed), mlcg2_(seed)
{}
SPROUT_CONSTEXPR additive_combine_engine(typename MLCG1::result_type seed1, typename MLCG2::result_type seed2)
: mlcg1_(seed1)
, mlcg2_(seed2)
template<typename Sseq>
explicit SPROUT_CXX14_CONSTEXPR additive_combine_engine(Sseq& seq)
: mlcg1_(seq), mlcg2_(seq)
{}
template<typename Sseq>
explicit SPROUT_CONSTEXPR additive_combine_engine(Sseq const& seq)
: mlcg1_(seq), mlcg2_(seq)
{}
template<typename ForwardIterator>
SPROUT_CONSTEXPR additive_combine_engine(ForwardIterator first, ForwardIterator last)
: mlcg1_(first, last), mlcg2_(first, last)
{}
SPROUT_CONSTEXPR additive_combine_engine(typename base1_type::result_type seed1, typename base2_type::result_type seed2)
: mlcg1_(seed1), mlcg2_(seed2)
{}
SPROUT_CONSTEXPR additive_combine_engine(base1_type const& rng1, base2_type const& rng2)
: mlcg1_(rng1), mlcg2_(rng2)
{}
SPROUT_CXX14_CONSTEXPR void seed() {
mlcg1_.seed();
mlcg2_.seed();
}
SPROUT_CXX14_CONSTEXPR void seed(result_type seed) {
mlcg1_.seed(seed);
mlcg2_.seed(seed);
}
template<typename Sseq>
SPROUT_CXX14_CONSTEXPR void seed(Sseq& seq) {
mlcg1_.seed(seq);
mlcg2_.seed(seq);
}
template<typename Sseq>
SPROUT_CXX14_CONSTEXPR void seed(Sseq const& seq) {
mlcg1_.seed(seq);
mlcg2_.seed(seq);
}
template<typename ForwardIterator>
SPROUT_CXX14_CONSTEXPR void seed(ForwardIterator first, ForwardIterator last) {
mlcg1_.seed(first, last);
mlcg2_.seed(first, last);
}
SPROUT_CXX14_CONSTEXPR void seed(typename base1_type::result_type seed1, typename base2_type::result_type seed2) {
mlcg1_.seed(seed1);
mlcg2_.seed(seed2);
}
SPROUT_CONSTEXPR result_type min() const SPROUT_NOEXCEPT {
return 1;
}
@ -127,8 +163,8 @@ namespace sprout {
// ecuyer1988
//
typedef sprout::random::additive_combine_engine<
sprout::random::linear_congruential_engine<std::uint32_t, 40014, 0, 2147483563>,
sprout::random::linear_congruential_engine<std::uint32_t, 40692, 0, 2147483399>
sprout::random::linear_congruential_engine<std::uint_fast32_t, 40014, 0, 2147483563>,
sprout::random::linear_congruential_engine<std::uint_fast32_t, 40692, 0, 2147483399>
> ecuyer1988;
} // namespace random