cub::ForPolicy# struct ForPolicy# The tuning policy for all algorithms in DeviceFor. Public Functions inline friend ::std::ostream &operator<<( ::std::ostream &os, const ForPolicy &policy )# Public Members int threads_per_block# Number of threads in a CUDA block. If smaller than 1, this number will be determined at runtime based on the maximum occupancy of the kernel. int items_per_thread# Number of items processed per thread. Friends inline friend constexpr bool operator==( const ForPolicy &lhs, const ForPolicy &rhs ) noexcept# inline friend constexpr bool operator!=( const ForPolicy &lhs, const ForPolicy &rhs ) noexcept#