error (0, 0, "\"0*[0-9][0-9]\" did not match \"002\"");
error (0, 0, "\"0*[0-9][0-9]\" does not match \"002\"");
main (void){  regex_t re;  regmatch_t ma[2];  int reerr;  int res = 0;  re_set_syntax (RE_DEBUG);  reerr = regcomp (&re, "0*[0-9][0-9]", 0);  if (reerr != 0)    {      char buf[100];      regerror (reerr, &re, buf, sizeof buf);      error (EXIT_FAILURE, 0, buf);    }  if (regexec (&re, "002", 2, ma, 0) != 0)    {      error (0, 0, "\"0*[0-9][0-9]\" did not match \"002\"");      res = 1;    }  return res;}