data.__outbuf = s; data.__outbufend = s + MB_CUR_MAX;
data.__outbuf = (unsigned char *) s; data.__outbufend = (unsigned char *) s + MB_CUR_MAX;
__wcrtomb (char *s, wchar_t wc, mbstate_t *ps){  char buf[MB_CUR_MAX];  struct __gconv_step_data data;  int status;  size_t result;  size_t dummy;  const struct gconv_fcts *fcts;  /* Set information for this step.  */  data.__invocation_counter = 0;  data.__internal_use = 1;  data.__flags = __GCONV_IS_LAST;  data.__statep = ps ?: &state;  data.__trans = NULL;  /* A first special case is if S is NULL.  This means put PS in the     initial state.  */  if (s == NULL)    {      s = buf;      wc = L'\0';    }  /* Tell where we want to have the result.  */  data.__outbuf = s;  data.__outbufend = s + MB_CUR_MAX;  /* Get the conversion functions.  */  fcts = get_gconv_fcts (_NL_CURRENT_DATA (LC_CTYPE));  /* If WC is the NUL character we write into the output buffer the byte     sequence necessary for PS to get into the initial state, followed     by a NUL byte.  */  if (wc == L'\0')    {      status = DL_CALL_FCT (fcts->tomb->__fct,			    (fcts->tomb, &data, NULL, NULL,			     NULL, &dummy, 1, 1));      if (status == __GCONV_OK || status == __GCONV_EMPTY_INPUT)	*data.__outbuf++ = '\0';    }  else    {      /* Do a normal conversion.  */      const unsigned char *inbuf = (const unsigned char *) &wc;      status = DL_CALL_FCT (fcts->tomb->__fct,			    (fcts->tomb, &data, &inbuf,			     inbuf + sizeof (wchar_t), NULL, &dummy, 0, 1));    }  /* There must not be any problems with the conversion but illegal input     characters.  The output buffer must be large enough, otherwise the     definition of MB_CUR_MAX is not correct.  All the other possible     errors also must not happen.  */  assert (status == __GCONV_OK || status == __GCONV_EMPTY_INPUT	  || status == __GCONV_ILLEGAL_INPUT	  || status == __GCONV_INCOMPLETE_INPUT	  || status == __GCONV_FULL_OUTPUT);  if (status == __GCONV_OK || status == __GCONV_EMPTY_INPUT      || status == __GCONV_FULL_OUTPUT)    result = data.__outbuf - (unsigned char *) s;  else    {      result = (size_t) -1;      __set_errno (EILSEQ);    }  return result;}