Link to typedef enum?

Similar Questions

• 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

• 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.

• 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.

• Bug: Swap primitive bytes loses Typedef enum names clustered

  Using the 'Swap bytes' operation on a cluster that contains an enumeration that is a typedef loses the Typedef label so that it cannot be unbundled by name (see unbundling by name nodes in the code).

  In addition, the data types returned for enums in a cluster (Typedef or not) are more enums, but the representation of data types instead (see unbundle the nodes).

  

  Shane.

  Ben wrote:

  (B)

  I can't fully explain the logic, but maybe someone has an idea.

  A byte of operating on a byte Swap is a "NOOP" on all machines, I know since about 1980 then why is it necessary to break into the enum?

  A byte Swap on a larger data type would be bad if the enum leads a structure dealing with any case by default, then maybe that is part of the reason why we are losing the enum.

  With the exception of a one-byte enum, the structure of the case is irrelevent.  Unless you had all of the possible values defined in the enumeration, you would create an invalid enum, because all of a sudden, you have values that are not defined.  Even if you did, two enumerations would not equivalent as (name) values could be traded.  And since NEITHER requires the index 0, sequential values for their enums, if you do not have all the values processed, 0 would stay 0, a 1 would become a 127 (U16), etc.  So, you can see you can 'break' the enum that is why it should be removed for the equivalent integer.  The result of anything but a 1-byte enum is not the same type of data.

  Now, NOR perhaps should have an extraordinary deal for U8 enums, given that the value would not change, but I don't know what you see is the result of the need to manage the U16 and U32. (I never noticed that they did not provide U64 enums - what happens if I want to type in that many values, NO?)

• 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

  
  

• "Data dashboard" version 2.0 list drop-down list seen only "one, two, etc.» Instead of the text Enum

  I am currently using the new data on an iPad dashboard 1. I'm coding in suite developer Labview 2012. I found that switches work very well when it is associated with a shared variable. I finally managed to get the drop-down list to control a shared variable of data type typedef/enum. This control very well within the Labview program, but on the dashboard of data drop-down list shows only the "One" "two" etc... instead of the text 'This' Enum 'As' 'Other' I can write back to the dashboard with a text conversion of the enum to the dashboard and place it in a display of string over the fall down. While this gives the operator a display of the current Typedef/enum, it is not very intuitive. They must select 'One' to view 'This' "two to display 'Than' etc...

  How can I get the dashboard of data drop-down list control to display the text of the enum instead of "one" "two" etc?

  I think the point was that your question belongs to this other forum, not the forum of LabVIEW.

  (I'll ask the moderator to move this thread i).

• typedef does not refresh

  I have a state machine (which worked), and I wanted to add an additional State.  But when I try to update the typedef enum, I can't.   If I open the typedef, right click on product only a menu limited without any options to change.  If I right-click on the control and the 'Edit', it is clearly not updated the typedef because when I choose "update of typedef', the changes disappear.     I know I've done this before and I didn't have this problem.  What I am doing wrong?

  hc_ocean wrote:

  But I can't make the change.  If I open the typedef, I just get a grey popup with the list inside.  Right click on the list just has five options (2nd in gray).  They are "'Reset the default value', 'CutData', 'Data copy', 'Paste data' and 'Description and trick'.»   I looked in the options of the menu, and I don't see any way to update the ctl file.

  Are you sure that you run ins't using the typedef?  I get this menu by placing an enum in a while loop and running.

• Can I use several type def enums in 1 VI?

  Is it possible to use several type def enums each has its own States? In the larger scope of things, I want to use it in a MANUAL.

  Thank you

  mhaque

  Of course, you can have several type def enums.  I don't know what you mean by "in 1 VI.  Each typedef enum will have its own .ctl file.

• #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

• 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.

• 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.

• 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