sanguis::server::random::split_array<
Size
>
split(
sanguis::random_generator &_random_generator,
sanguis::server::random::min const _min,
sanguis::server::random::max const _max,
sanguis::server::random::split_array<
Size
> const &_sizes
)
{
typedef
sanguis::server::random::split_array<
Size
>
result_type;
typedef
typename
result_type::value_type
value_type;
typedef
typename
result_type::size_type
size_type;
typedef
sanguis::server::random::distributor<
value_type,
size_type
>
distributor_type;
distributor_type dist(
sanguis::server::random::map_with_index(
_sizes
)
);
result_type result(
fcppt::container::array::init_const<
result_type
>(
sanguis::server::random::amount(
0u
)
)
);
typedef
fcppt::random::distribution::parameters::uniform_int<
sanguis::server::random::amount
>
size_parameters;
sanguis::server::random::amount const draws(
fcppt::random::distribution::make_basic(
size_parameters(
size_parameters::min(
_min.get()
),
size_parameters::max(
_max.get()
)
)
)(
_random_generator
)
);
fcppt::algorithm::repeat(
draws.get(),
[
&_random_generator,
&dist,
&result
]()
{
++result[
dist.execute(
_random_generator
)
];
}
);
return
result;
}
Result
draw(
sanguis::random_generator &_random_generator,
Source const &_source,
sanguis::server::random::amount const _draws,
sanguis::server::random::create_function<
typename
Result::value_type,
typename
Source::value_type
> const &_create_function,
sanguis::server::random::less_function<
typename
Result::value_type
> const &_less_function,
sanguis::server::random::equal_function<
typename
Result::value_type
> const &_equal_function
)
{
return
fcppt::optional::maybe(
fcppt::random::wrapper::make_uniform_container(
_source
),
[]{
return
Result();
},
[
&_random_generator,
&_less_function,
&_create_function,
&_equal_function,
&_source,
&_draws
](
fcppt::random::wrapper::uniform_container<
Source const
> _container_distribution
)
{
Result result;
result.reserve(
std::min(
fcppt::cast::size<
typename
Source::size_type
>(
_draws.get()
),
_source.size()
)
);
fcppt::algorithm::repeat(
result.capacity(),
[
&_create_function,
&_random_generator,
&_container_distribution,
&result
]()
{
result.push_back(
_create_function.get()(
_container_distribution(
_random_generator
)
)
);
}
);
std::sort(
result.begin(),
result.end(),
_less_function.get()
);
result.erase(
std::unique(
result.begin(),
result.end(),
_equal_function.get()
),
result.end()
);
return
result;
}
);
}