Function add_pair

v2/engine/modules/order.c:18–26

Use quite klugy approach: when we add order dependency from 'a' to 'b', just * append 'b' to of value of variable 'a'. */

 * append 'b' to of value of variable 'a'.
 */
LIST * add_pair( FRAME * frame, int flags )
{
    LIST * arg = lol_get( frame->args, 0 );
    LISTITER iter = list_begin( arg );
    LISTITER const end = list_end( arg );
    var_set( frame->module, list_item( iter ), list_copy_range( arg, list_next(
        iter ), end ), VAR_APPEND );
    return L0;
}


/* Given a list and a value, returns position of that value in the list, or -1