Function svn_txdelta_compose_windows 

pub unsafe extern "C" fn svn_txdelta_compose_windows(
    window_A: *const svn_txdelta_window_t,
    window_B: *const svn_txdelta_window_t,
    pool: *mut apr_pool_t,
) -> *mut svn_txdelta_window_t

Compose two delta windows, yielding a third, allocated in @a pool.

@since New in 1.4