Function r_core::r_rbtree_aug_delete

pub unsafe extern "C" fn r_rbtree_aug_delete(
    root: *mut *mut RBNode, 
    data: *mut c_void, 
    cmp: RBComparator, 
    cmp_user: *mut c_void, 
    freefn: RBNodeFree, 
    free_user: *mut c_void, 
    sum: RBNodeSum
) -> bool