Function svn_ra_get_dated_revision 

pub unsafe extern "C" fn svn_ra_get_dated_revision(
    session: *mut svn_ra_session_t,
    revision: *mut svn_revnum_t,
    tm: apr_time_t,
    pool: *mut apr_pool_t,
) -> *mut svn_error_t

Get the latest revision number at time @a tm in the repository of @a session.

Use @a pool for memory allocation.

@since New in 1.2.