Function kj 

pub unsafe extern "C" fn kj(long: J) -> K

Constructor of q long object.

Example

use kdbplus::api::*;
use kdbplus::api::native::*;

#[no_mangle]
pub extern "C" fn create_long(_: K) -> K{
  unsafe{kj(-668541276001729000)}
}

q)lengthy: libc_api_examples 2: (`create_long; 1);
q)lengthy[]
-668541276001729000