Function kdbplus::api::native::r0

pub unsafe extern "C" fn r0(qobject: K) -> V

Decrement reference count of the q object. The decrement must be done when k function gets an error object whose type is qtype::ERROR and when you created an object but do not intend to return it to q side. See details on the reference page.

Example

use kdbplus::api::*;
use kdbplus::api::native::*;
 
#[no_mangle]
pub extern "C" fn idle_man(_: K)->K{
  unsafe{
    // Creare an int object.
    let int=ki(777);
    // Changed the mind. Discard it.
    r0(int);
  }
  // Return null.
  KNULL
}

q)idle_man: libc_api_examples 2: (`idle_man; 1);
q)idle_man[]
q)