SPROUT_CONSTEXPR sprout::random::random_result<Engine, uniform_01> generate_1(
Engine const& eng,
sprout::random::random_result<Engine> const& rnd,
result_type result
) const
{
return result < result_type(1)
? sprout::random::random_result<Engine, uniform_01>(result, rnd.engine(), *this)
: operator()(rnd.engine())
;
}
SPROUT_CONSTEXPR sprout::random::detail::generate_uniform_real_result<T, Engine> generate_uniform_real_false_1(
sprout::random::random_result<Engine> const& rnd,
T min_value,
T max_value
)
{
return sprout::random::detail::generate_uniform_real_false_2(
rnd.engine(),
min_value,
max_value,
static_cast<T>(rnd.result() - rnd.engine().min()),
static_cast<T>(rnd.engine().max() - rnd.engine().min())
);
}
SPROUT_CONSTEXPR sprout::random::detail::generate_uniform_real_result<T, Engine> generate_uniform_real_true_1(
sprout::random::random_result<Engine> const& rnd,
T min_value,
T max_value
)
{
typedef typename Engine::result_type base_result;
return sprout::random::detail::generate_uniform_real_true_2(
rnd.engine(),
min_value,
max_value,
static_cast<T>(sprout::random::detail::subtract<base_result>()(rnd.result(), rnd.engine().min())),
static_cast<T>(sprout::random::detail::subtract<base_result>()(rnd.engine().max(), rnd.engine().min())) + 1
);
}
SPROUT_CONSTEXPR sprout::random::random_result<Engine, uniform_01> generate(
Engine const& eng,
sprout::random::random_result<Engine> const& rnd
) const
{
typedef typename Engine::result_type base_result;
return generate_1(
eng,
rnd,
result_type(rnd.result() - eng.min()) * (
result_type(1) / (
result_type(eng.max() - eng.min()) + result_type(
std::numeric_limits<base_result>::is_integer ? 1 : 0
)
)
)
);
}