Function extractInt

wiringPi/wpiExtensions.c:108–135

 */

static char *extractInt (char *progName, char *p, int *num)
{
  if (*p != ':')
  {
    verbError ("%s: colon expected", progName) ;
    return NULL ;
  }

  ++p ;

  if (!isdigit (*p))
  {
    verbError ("%s: digit expected", progName) ;
    return NULL ;
  }

  *num = strtol (p, NULL, 0) ;

// Increment p, but we need to check for hex 0x

  if ((*p == '0') && (*(p + 1) == 'x'))
    p +=2 ;

  while (isxdigit (*p))
    ++p ;

  return p ;
}


/*