[−]Constant opencl3::command_queue::CL_QUEUE_ON_DEVICE_DEFAULT
pub const CL_QUEUE_ON_DEVICE_DEFAULT: u64 = 1 << 3; // 0x0_000_000_000_000_008u64
pub const CL_QUEUE_ON_DEVICE_DEFAULT: u64 = 1 << 3; // 0x0_000_000_000_000_008u64