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#include <thrust/detail/config.h>
#if _CCCL_STD_VER >= 2014
# include <thrust/async/for_each.h>
# include <thrust/device_vector.h>
# include <thrust/host_vector.h>
# include <unittest/unittest.h>
# define DEFINE_ASYNC_FOR_EACH_CALLABLE(name, ...) \
struct THRUST_PP_CAT2(name, _fn) \
{ \
template <typename ForwardIt, typename Sentinel, typename UnaryFunction> \
_CCCL_HOST auto operator()(ForwardIt&& first, Sentinel&& last, UnaryFunction&& f) const \
THRUST_RETURNS(::thrust::async::for_each( \
__VA_ARGS__ THRUST_PP_COMMA_IF(THRUST_PP_ARITY(__VA_ARGS__)) THRUST_FWD(first), \
THRUST_FWD(last), \
THRUST_FWD(f))) \
}; \
/**/
DEFINE_ASYNC_FOR_EACH_CALLABLE(invoke_async_for_each);
DEFINE_ASYNC_FOR_EACH_CALLABLE(invoke_async_for_each_device, thrust::device);
# undef DEFINE_ASYNC_FOR_EACH_CALLABLE
///////////////////////////////////////////////////////////////////////////////
struct inplace_divide_by_2
{
template <typename T>
_CCCL_HOST_DEVICE void operator()(T& x) const
{
x /= 2;
}
};
///////////////////////////////////////////////////////////////////////////////
template <typename AsyncForEachCallable, typename UnaryFunction>
struct test_async_for_each
{
template <typename T>
struct tester
{
_CCCL_HOST void operator()(std::size_t n)
{
thrust::host_vector<T> h0_data(unittest::random_integers<T>(n));
thrust::device_vector<T> d0_data(h0_data);
thrust::for_each(h0_data.begin(), h0_data.end(), UnaryFunction{});
auto f0 = AsyncForEachCallable{}(d0_data.begin(), d0_data.end(), UnaryFunction{});
f0.wait();
ASSERT_EQUAL(h0_data, d0_data);
}
};
};
DECLARE_GENERIC_SIZED_UNITTEST_WITH_TYPES_AND_NAME(
THRUST_PP_EXPAND_ARGS(test_async_for_each<invoke_async_for_each_fn, inplace_divide_by_2>::tester),
NumericTypes,
test_async_for_each);
DECLARE_GENERIC_SIZED_UNITTEST_WITH_TYPES_AND_NAME(
THRUST_PP_EXPAND_ARGS(test_async_for_each<invoke_async_for_each_device_fn, inplace_divide_by_2>::tester),
NumericTypes,
test_async_for_each_policy);
#endif
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