cl_sys::cl_h::clCreateContextFromType

pub unsafe extern "system" fn clCreateContextFromType(properties: *const cl_context_properties, device_type: cl_device_type, pfn_notify: Option<extern fn(*const c_char, *const c_void, size_t, *mut c_void)>, user_data: *mut c_void, errcode_ret: *mut cl_int) -> cl_context