Function r_core::r_diff_levenshtein_path

pub unsafe extern "C" fn r_diff_levenshtein_path(
    bufa: *mut RLevBuf, 
    bufb: *mut RLevBuf, 
    maxdst: c_uint, 
    levdiff: RLevMatches, 
    chgs: *mut *mut RLevOp
) -> c_int