Function get_width

strings/my_vsnprintf.c:88–95

*/

static const char *get_width(const char *fmt, size_t *width)
{
  for (; my_isdigit(&my_charset_latin1, *fmt); fmt++)
  {
    *width= *width * 10 + (uint)(*fmt - '0');
  }
  return fmt;
}

/**
  Calculates print width or index of positional argument