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add normal_distribution::stddev

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bolero-MURAKAMI 2012-11-16 13:40:19 +09:00
parent 225c11b505
commit f37e8a9088
19 changed files with 261 additions and 211 deletions
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22
sprout/random/mersenne_twister.hpp
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@ -46,6 +46,13 @@ namespace sprout {
SPROUT_STATIC_CONSTEXPR std::size_t unroll_factor = 6;
SPROUT_STATIC_CONSTEXPR std::size_t unroll_extra1 = (n - m) % unroll_factor;
SPROUT_STATIC_CONSTEXPR std::size_t unroll_extra2 = (m - 1) % unroll_factor;
public:
static SPROUT_CONSTEXPR result_type static_min() SPROUT_NOEXCEPT {
return 0;
}
static SPROUT_CONSTEXPR result_type static_max() SPROUT_NOEXCEPT {
return sprout::detail::low_bits_mask_t<w>::sig_bits;
}
private:
template<typename... Args>
static SPROUT_CONSTEXPR typename std::enable_if<
@ -68,13 +75,6 @@ namespace sprout {
static SPROUT_CONSTEXPR sprout::array<UIntType, n> init_seed(UIntType const& value) {
return init_seed_1(value & static_max());
}
public:
static SPROUT_CONSTEXPR result_type static_min() {
return 0;
}
static SPROUT_CONSTEXPR result_type static_max() {
return sprout::detail::low_bits_mask_t<w>::sig_bits;
}
private:
sprout::array<UIntType, n> x_;
std::size_t i_;
@ -373,10 +373,10 @@ namespace sprout {
: x_(init_seed(value))
, i_(n)
{}
SPROUT_CONSTEXPR result_type min() const {
SPROUT_CONSTEXPR result_type min() const SPROUT_NOEXCEPT {
return static_min();
}
SPROUT_CONSTEXPR result_type max() const {
SPROUT_CONSTEXPR result_type max() const SPROUT_NOEXCEPT {
return static_max();
}
SPROUT_CONSTEXPR sprout::random::random_result<mersenne_twister_engine> operator()() const {
@ -385,13 +385,13 @@ namespace sprout {
: generate()
;
}
friend SPROUT_CONSTEXPR bool operator==(mersenne_twister_engine const& lhs, mersenne_twister_engine const& rhs) {
friend SPROUT_CONSTEXPR bool operator==(mersenne_twister_engine const& lhs, mersenne_twister_engine const& rhs) SPROUT_NOEXCEPT {
return lhs.i_ < rhs.i_
? lhs.equal_impl(rhs)
: rhs.equal_impl(lhs)
;
}
friend SPROUT_CONSTEXPR bool operator!=(mersenne_twister_engine const& lhs, mersenne_twister_engine const& rhs) {
friend SPROUT_CONSTEXPR bool operator!=(mersenne_twister_engine const& lhs, mersenne_twister_engine const& rhs) SPROUT_NOEXCEPT {
return !(lhs == rhs);
}
template<typename Elem, typename Traits>