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Kanitkorn1291-Visitor
1-Visitor
July 2, 2020
Question

Join 32 bit int to 64 bit int

  • July 2, 2020
  • 1 reply
  • 2149 views

Hi all, 

I try to create services for joining 2, 32 bit int as a high_byte and low_byte.

Like join() function in picture below.

Kanitkorn129_0-1593670955270.png

But seem like in services can't left shift 32 index.

I try to use (3 << 32) the result is always 3 not 12,884,901,888.

But when I use (3<<2) the result is 12.

What is I miss or it have another way to join 2 32 int into 1 

 

1 reply

C
CarlesColl1-Visitor
1-Visitor
July 2, 2020

This is Rhino Javascript engine, and I don't think it can handle 64bits Unsigned Ints. You have two options, you can build a Java extension which handles your Unsigned Ints through ThingWorx Long base types (still you will have problems, becouse Thingworx LONG base type it's a 64bits Signed Int: https://www.ptc.com/en/support/article/CS247959 ), or you can use a Javascript Library which handles 64bits Unsigned Int like this one: http://theori.io/pwnjs/integer.js.html or many others which should be outthere.

 

Regads.

    K
    Kanitkorn1291-VisitorAuthor
    1-Visitor
    July 2, 2020

    Hi Carles
    Thank you for your suggestion, I will try the second option.

     

    Regards.

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