pub unsafe fn pg_do_encoding_conversion_buf(
arg_proc_: Oid,
arg_src_encoding: c_int,
arg_dest_encoding: c_int,
arg_src: *mut c_uchar,
arg_srclen: c_int,
arg_dst: *mut c_uchar,
arg_dstlen: c_int,
arg_noError: bool,
) -> c_int