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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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53
sprout/random/shuffle_order.hpp
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@ -36,6 +36,13 @@ namespace sprout {
base_type rng_;
sprout::array<result_type, k> v_;
result_type y_;
public:
SPROUT_CXX14_CONSTEXPR shuffle_order_engine_member& operator=(shuffle_order_engine_member const& rhs) {
rng_ = rhs.rng_;
v_ = rhs.v_;
y_ = rhs.y_;
return *this;
}
};
} // namespace detail
//
@ -70,7 +77,7 @@ namespace sprout {
private:
template<typename Random, typename... Args>
static SPROUT_CONSTEXPR typename std::enable_if<
sizeof...(Args) == k,
(sizeof...(Args) == k),
member_type
>::type init_member_1(Random const& rnd, Args const&... args) {
return member_type{
@ -81,7 +88,7 @@ namespace sprout {
}
template<typename Random, typename... Args>
static SPROUT_CONSTEXPR typename std::enable_if<
sizeof...(Args) < k,
(sizeof...(Args) < k),
member_type
>::type init_member_1(Random const& rnd, Args const&... args) {
return init_member_1(rnd(), args..., rnd.result());
@ -97,7 +104,7 @@ namespace sprout {
SPROUT_CONSTEXPR shuffle_order_engine(
base_type const& rng,
sprout::array<result_type, k> const& v,
result_type const& y,
result_type y,
private_construct_t
)
: member_type{rng, v, y}
@ -132,12 +139,42 @@ namespace sprout {
SPROUT_CONSTEXPR shuffle_order_engine()
: member_type(init_member(base_type()))
{}
explicit SPROUT_CONSTEXPR shuffle_order_engine(result_type const& s)
: member_type(init_member(base_type(s)))
explicit SPROUT_CONSTEXPR shuffle_order_engine(result_type seed)
: member_type(init_member(base_type(seed)))
{}
template<typename Sseq>
explicit SPROUT_CXX14_CONSTEXPR shuffle_order_engine(Sseq& seq)
: member_type(init_member(base_type(seq)))
{}
template<typename Sseq>
explicit SPROUT_CONSTEXPR shuffle_order_engine(Sseq const& seq)
: member_type(init_member(base_type(seq)))
{}
template<typename InputIterator>
SPROUT_CONSTEXPR shuffle_order_engine(InputIterator first, InputIterator last)
: member_type(init_member(base_type(first, last)))
{}
explicit SPROUT_CONSTEXPR shuffle_order_engine(base_type const& rng)
: member_type(init_member(rng))
{}
SPROUT_CXX14_CONSTEXPR void seed() {
member_type::operator=(init_member(base_type()));
}
SPROUT_CXX14_CONSTEXPR void seed(result_type seed) {
member_type::operator=(init_member(base_type(seed)));
}
template<typename Sseq>
SPROUT_CXX14_CONSTEXPR void seed(Sseq& seq) {
member_type::operator=(init_member(base_type(seq)));
}
template<typename Sseq>
SPROUT_CXX14_CONSTEXPR void seed(Sseq const& seq) {
member_type::operator=(init_member(base_type(seq)));
}
template<typename InputIterator>
SPROUT_CXX14_CONSTEXPR void seed(InputIterator first, InputIterator last) {
member_type::operator=(init_member(base_type(first, last)));
}
SPROUT_CONSTEXPR result_type min() const SPROUT_NOEXCEPT {
return rng_.min();
}
@ -209,12 +246,10 @@ namespace sprout {
//
// knuth_b
//
typedef sprout::random::shuffle_order_engine<sprout::random::minstd_rand0, 256> knuth_b;
//
// kreutzer1986
//
typedef sprout::random::shuffle_order_engine<sprout::random::linear_congruential_engine<std::uint32_t, 1366, 150889, 714025>, 97> kreutzer1986;
typedef sprout::random::shuffle_order_engine<sprout::random::minstd_rand0, 256> knuth_b;
typedef sprout::random::shuffle_order_engine<sprout::random::linear_congruential_engine<std::uint_fast32_t, 1366, 150889, 714025>, 97> kreutzer1986;
} // namespace random
using sprout::random::shuffle_order_engine;