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#include <stdlib.h>

size_t

_DEFUN (_wcstombs_r, (reent, s, pwcs, n, state),

        struct _reent *r    _AND

        char          *s    _AND

        const wchar_t *pwcs _AND

        size_t         n    _AND

        int           *state)

{

  char *ptr = s;

  size_t max = n;

  char buff[8];

  int i, num_to_copy;

  while (n > 0)

    {

      int bytes = _wctomb_r (r, buff, *pwcs, state);

      if (bytes == -1)

        return -1;

      num_to_copy = (n > bytes ? bytes : (int)n);

      for (i = 0; i < num_to_copy; ++i)

        *ptr++ = buff[i];

      if (*pwcs == 0x00)

        return ptr - s - (n >= bytes);

      ++pwcs;

      n -= num_to_copy;

    }

  return max;

}