regerror

function regerror(

  __errcode: LongInt;

  __preg: pregex_t;

  __errbuf: Pchar;

  __errbuf_size: size_t

):size_t;

function regerror(

  __errcode: LongInt;

  const __preg: regex_t;

  __errbuf: Pchar;

  __errbuf_size: size_t

):size_t;