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add C++14 constexpr version: random generator

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bolero-MURAKAMI 2013-11-05 17:39:11 +09:00
parent 2c9f0647f4
commit 230630b45b
6 changed files with 44 additions and 2 deletions
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4
sprout/random/linear_feedback_shift.hpp
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@ -78,6 +78,10 @@ namespace sprout {
SPROUT_CONSTEXPR result_type max() const SPROUT_NOEXCEPT {
return static_max();
}
SPROUT_CXX14_CONSTEXPR result_type operator()() {
x_ = ((x_ & ((wordmask() << (w - k)) & wordmask())) << s) ^ ((((x_ << q) ^ x_) & wordmask()) >> (k - s));
return x_;
}
SPROUT_CONSTEXPR sprout::random::random_result<linear_feedback_shift_engine> const operator()() const {
return generate(((x_ & ((wordmask() << (w - k)) & wordmask())) << s) ^ ((((x_ << q) ^ x_) & wordmask()) >> (k - s)));
}