calling other function, using return values


    May 11 2013 | 12:51 pm
    is there an example in the sdk? i have this function : `void nocturn_init(t_nocturn *x)
    {
    struct usb_bus *busses;
    struct usb_bus *bus;
    struct usb_device *dev;
    usb_init();
    usb_find_busses();
    usb_find_devices();
    busses = usb_get_busses();
    for (bus = usb_get_busses(); bus; bus = bus->next)
    {
    for (dev = bus->devices; dev; dev = dev->next)
    {
    if (dev->descriptor.idVendor == MY_VID
    && dev->descriptor.idProduct == MY_PID)
    {
    object_post((t_object *)x, "found a Novation Nocturn device");
    object_post((t_object *)x, "Configurations : %i",dev->descriptor.bNumConfigurations);
    return usb_open(dev);
    }
    }
    }
    return NULL;
    } `
    how do i call this from another function and use the returned value?

    • May 13 2013 | 8:27 am
      Hi there,
      if you want to return a generic pointer, you need to define the function as:
      void *nocturn_init(t_nocturn *x);
      Otherwise if usb_open(dev) returns a specific type, you could use
      that as the function return type;
      To call it from another function:
      void another_function(t_nocturn *x)
      {
      void *ret_ptr;
      ret_ptr = nocturn_init(x);
      }
      Best.
      - Luigi
    • May 13 2013 | 3:59 pm
      thanks Luigi, i sorted that one out shortly after writing the thread, like so often..O.