Bug: Swap primitive bytes loses Typedef enum names clustered

Similar Questions

• Convert a typedef enum in a non-typedef enum?

  Is there one had to ride an enum that is connected to a typedef for a typedef no had version?

  I have a case structure (defined by typedef enum case) which also includes an event of default. In the default case, I convert the enum to a string and parse the string for a particular value. This as well as the numerical value of the enum element is the kind of assistance until a case of 'real' is set for this item. Now the conversion and analysis could be used in another structure of business I had. But to make a universal Subvi the enum must be NOT typedef. LabVIEW does not make the automatic conversion here and a 'type cast' loses the value enum completely. Is there a way to remove the connection to the typedef enum programmatically before transmitting it to the Subvi?

  The entrance to your Subvi make a Variant. You can get the numeric value of it by the conversion of a numeric type; You can also get the list of corresponding channels using GetNumericInfo in vi.lib\utility\VariantDataType. Combining these you should get the information you want.

• typedef enum typedef to the tab control

  I have a typedef enum that defines that the DUT is for my automated test device. This enumeration is used everywhere in my code to determine which tests to run and how to interpret the results, etc. I also have a (much indicator tab to be precise) typedef tab control that has a page for each of the ESA with various indicators for each test that will be carried out on it must HAVE specific.

  I would use the typedef enum to select which page of the tab indicator to display. I am able to do it with brute force just a U32 converter like this:

  

  But would prefer to (because of my anality) eliminate dotting ugly coercian red (and depending on the size of the code, all memory that I can save help too).

  I tried many things, and none seems not to work. In this way, using a type cast, does not work.

  

  And not that this using variants (although it works with this little piece of the code example, maybe because my test set-up is an executable?):

  

  With the variant version, my test fixture survey an error 91 indicating data types is not compatible.

  Anyone has an idea how to convert between these two without which dot ugly coercian?

  Why not write a little VI with Enum entry and exit of the tab? It should be just a case internally structure. You can do the small icon so it does not much more space than the U32 conversion.

  Lynn

• Link to typedef enum?

  Hey Gang,

  I have a few enum controls that will use all the same choices.  It would be wastful to create a typedef for each of them.  So far, I have not found a way to change what typedef enum is connected to.

  Someone would clue me on how to connect an enum to an existing typedef?

  Thank you!

  Roger

  Right-click the enum-> select replace-> Navigate to the typedef.     The enum will be replaced by an enum that is bound to the typedef.

• A typedef Enum with more 100 entry don't update

  Hello!

  

  Enum even one made before update the TypeDef (left with 100 points), one made after update (right with 104 articles)

  Why not is not updated even if 'Auto Update of Type def' is active...

  Same with LV2010

  First of all, you don't have an enum.  You have control of the ring.  It has different behaviors with respect to typedefs compared to enums.

  I did a search on "ring typedef is not updated" and there was some interesting discussion on the subject, you should read.

• Reference typedef enum class conversion leads to the error 1057

  

  In the vi above, I try to get the number of entries and the string to a type enum values. I get error 1057 in the most specific class vi. Where is my mistake either I misunderstood something?

  Thanks in advance.

  Thank you.

  I didn't go to LV 2015 before the first service pack is not available.

  Your Board, I found a solution: I extracted the frontpanel typedef element and cast to the enum. It's not like simple, in fact, it is much more complicated, but it seems to me the right way to do it. The attached picture shows a vi, which takes a ref vi of the typedef as input and generates output channels of the enum defined it. There should be a few errors that I have did ' t do again, for example, make sure that the entry is a typedef and that it defines an enumeration, but the principle is there.

• Record class in binary with TypeDef Enum object

  I'm curious to know if this is expected behavior. I'm trying to save a class object to a binary file. In the private class data, I have an enum of the def type. If the type def change once the data has been written to disk, the data back out restores the default value of the enum.

  I have worked under the assumption that "Labview automatically creates algorithms to change data from the old format to the new format when you change your private data" (cited directly in the section on storage of objects of the class on the disk in the oriented object programming in labview course). It doesn't seem to be valid in this case. I've attached an example that illustrates. To reproduce:

  1. run "Write Binary.vi" and a binary file will be saved with the value enum Val3.

  2. make run 'read Binary.vi. ' The results should be Val3 as expected.

  3. open "TypeDefEnum.ctl" and remove Val2 from the list of enum.

  4. make sink "read Binary.vi". The result will now be Val1, Val3 not.

  EDIT:

  Should have added, I'm on Windows7, 64-bit, sp1 Labview 2012

  It turns out this is a known issue and it has been documented in CAR 48516.

• What would cause a constant changes during execution typedef enum

  Hello

  In my program I had a problem with a constant of enum for a selection of the tab value change during execution.  The enum is as part of the initialization of the program and when I step through the loop and then you see the property node of the climax to the value tab and in the next step of the enum changes its value.  I'm under LV 8.0

  Any information will be greatly appreciated.

  Gary

  
  

• How relabel case designated enum in the state machine

  Hello

  I have a state machine application in which typedef enum is used to refer to the names of the case.  Is there a faster way to rename one or more cases to match the typedef enum edited instead of having to rebuild each of them (the case structure loses all enum names if I try to edit in any way)?

  Thank you in advance,

  Oliver Barrett

  www.LinkedIn.com

  One thing to add, once your custom/constant in your block diagram control, if you decide to add a new case after case is added, you can simply go file > apply changes in the control to customize window and they will all up-to-date in your block diagram.

• concatenate the bunches to the table with enums

  Hi I'm trying to concatenate three tables 1 d filled an i32 and an enum.

  When I look at my table concatenated, I lose my enum information... It is 0,1,2,3,4 etc. instead of the channel names?

  

  Does anyone have a solution for this?

  Best regards

  Thijs

  How exactly did you 'look' table concatenated? If you use a digital indicator instead of listed, the VI will run, but you will lose the enum names.

  However, if you the probe wire, and/or right click > create indicator... you should not encounter the problem, in which case the problem must be somewhere else.

• LV lose bytes (once?) in the process of loop

  Hey dear community NOR!

  I lose bytes... and I guess, I do it during the first loop of my program.

  The .vi is attached below. Here is a screenshot of the block diagram and the 'live feed' monitor the missing bytes (after explanation):

  

  Here's how the program works:

  My Arduino Mega2560 sends the data of 16 pins + chain marker 'xx' in a continuous cycle. Now, I want to follow those pins.

  1-34 (= 16pins * 2 [bytes] + 2 ['xx']) bytes are read and checked for the sequence "xx".

  2. the index of the first character after "xx" determines how much more bytes are to be read before our loop begins. (The purpose behind this is to have the 34-byte-strings during each loop begins with 32 followed data bytes the bytes of the 'xx' marker.)

  3. the loop takes 34 bytes and evaluates the first two bytes for the value of the first pin.

  The 'before the correction of the loop' shows that the used string ends with 'xx' just before the beginning of the loop. Measure the loop bytes with 'live feed' displays however data, where 'xx' is not in the end, makes the assessment of my impossible. (Note: 'xx' in hexadecimal display '7878', then the string of bytes in the above image is disabled by a single byte.) Also, note that once the program is started, the false '7878' position remains the same, as if the byte loses occurce once.

  Any ideas?

  Kind regards

  Froebel, Friedrich G.

  PS: The Arduino Mega2560 is running at 38400 baud. Higher values are not accepted. Do you know why or how I could solve this problem?

  Friedrich,

  The default value for VISA configure Serial Port is to terminate readings with a stop = 0a = newline character. Any time a 0a occurs in all of your data, the reading will be terminated without expectation of 34 characters. Solution: wire a False entrance to stop character constant allow the upper part of Setup.

  Or you can change the stop character to be your character of marker (such as discussed in your other thread).

  Lynn

• #if works only with enums

  Hello

  Is there a way to make the preprocessor accept enums do example below the work it out? (I have not dug in the ansi C for this specification)

  #include
  /*
  #define TEST1 (0)
  TEST2 #define (1)
  #define TEST3 (2)
  #define TEST4 (3)

  #define ALL_TESTS (4)

  */
  typedef enum {TEST1, TEST2, TEST3, TEST4, ALL_TESTS} TEST;
  #define DO_TEST (TEST3)

  int main (int argc, char * argv [])
  {
  char * names [] = {'one', 'two', 'three', 'four'};
  The TESTS I have;
  int i;
  int index;
  #if! defined (DO_TEST)
  printf ("Please set DO_TEST, e.g. #define DO_TEST (TEST3) \n");
  goto end;
  #elif (DO_TEST == ALL_TESTS)
  for (i = 0; i
  {
  #else
  I have = DO_TEST;
  #endif
   
  printf ("name [%d] = %s\n", i, names [i]);
  defined (DO_TEST) #if & (DO_TEST == ALL_TESTS)
  }
  #endif
  at the end:
  GetChar ();
  return 0;
  }

  I think you are on to a loser here. enums are not part of the subsystem of a C compiler preprocessor, so of course #if will not work with them.

  JR

• Case of assignment of event names

  Hello

  I would like to know if there is a convenient way to change the names of cases in a structure of the event or to identify cases in any other way.

  The problem I'm facing: whenever I have have a structure of the event which has several cases who oversee multiple entries, each is not obvious at first sight is that a certain case. For example, I would cite a case in my structure of the event "refresh view" I know what he does and not what item of façade changes could run (cause should always be able to see this :-).

  Any suggestions?

  Best regards Florian

  Florian.Ludwig wrote:

  Thanks for any suggestions,

  I already use only legends about the FP (reasons much IMHO desirable), and once your inside the case of the typedef enum'ed does a decent job of document in which case you

  (although Randall is right - it is better here, especially when you're "ctrl-mouswheeling" through the case :-).

  I just wanted there was some visible clues to the event structure of the menu drop down. The structure of the event I'm getting about 70 cases which some monitor more than 20 FP controls.

  Scrolling is not practice it either - and Yes, there is a lot of space FP in a tab control.

  It is also why events user would be too much work to do now to only a marginal improvement.

  Best regards Florian

  Have you considered an approach 'divide and conquer', by which I mean some of these events pushing down into a Subvi, which uses the dynamic event record to do the job?

  Examples of things that can be pushed down are things like "Whn this button is clicked on this thing should be shown or hidden."

  Ben

• Enum constant change in value when executing LV 2011

  Hi all

  I have a program with a simple state machine that runs a typedef enum constant.  When I run the VI, the actual value passed out of the CONSTANT seems to go back to '0' at random.  Please see the attached two screenshots.

  The only thing that lights no doubt the bug, the enum wire is connected to a switch (I like do to detect and handle errors).  Nothing permanently off the bug

  This is almost identical to that discussed in this thread here, claiming the bug was fixed in BT 8.0.1.  I use 32 bit LV 11.0 on windows 7.  No idea how to kill this bug?

  Whenever I see such things, my first instinct is to drop a node 'Always copy' following the constant.

• Conflict of enumeration after update of typedef

  Hello world

  I am facing a problem that only happens with a specific typedef enum in my application. This enumeration contains something more than 80 items and that my applications push I need to change it at any time of course.

  So if you change, I opened the typedef, make the changes (remove/add/rename elements) and close the bottle with the record of the changes.

  Now what is happening (not always but often) is: number of instances (constant) of the typedef lose their value as it is defined in the first enum value (0). The broken wire appears due to a conflict enumeration occurs (see attached screenshot). It's extremely embarrassing manually update all of these instances, and this isn't the real purpose of a typedef, indeed.

  Someone of you facing this problem too? No idea why this happens with this control a typedef, and never with any other in my application.

  Thanks a lot for your help!

  Thomas