Post a Reply
328 views

macOS Catalina: 32-bit is Dead!

  1. 5 weeks ago

    Adrian P

    Jun 7 Montreal, Quebec

    Reassuring to know that Xojo will continue to only support 32-bit arrays.

  2. Christian S

    Jun 7 Pre-Release Testers, Xojo Pro, XDC Speakers Germany

    32bit arrays?

    the question is how long we keep a checkbox for building 32-bit apps.
    Not sure how many people still have not ported to 64-bit, e.g. due to use of old APIs or old libraries.

  3. Gavin S

    Jun 7 Pre-Release Testers UK

    @ChristianSchmitz 32bit arrays?

    the question is how long we keep a checkbox for building 32-bit apps.
    Not sure how many people still have not ported to 64-bit, e.g. due to use of old APIs or old libraries.

    They can keep building with older releases.

  4. Alberto D

    Jun 7 Pre-Release Testers

    I think Adrian read the blog post https://blog.xojo.com/2019/06/07/macos-catalina-32-bit-is-dead/
    From it:

    Xojo will only support building 64-bit Mac apps in a future release

    I hope that includes building from Windows/Linux, but I know that LLVM is not 100% ready.

  5. Adrian P

    Jun 7 Montreal, Quebec

    Hi Christian,

    Sorry, the sarcasm at my end may have been misplaced. Are you saying that newer versions of RB/Xojo do now allow for 64-bit sized arrays? I was still basing this on the online notes:

    >Arrays are limited to 32-bit size in 64-bit apps.

  6. Greg O

    Jun 7 Xojo Inc

    @Adrian P Hi Christian,

    Sorry, the sarcasm at my end may have been misplaced. Are you saying that newer versions of RB/Xojo do now allow for 64-bit sized arrays? I was still basing this on the online notes:

    >Arrays are limited to 32-bit size in 64-bit apps.

    Could you point me to where you found that?

  7. Christian S

    Jun 7 Pre-Release Testers, Xojo Pro, XDC Speakers Germany

    It may be that arrays are limited to 32-bit for the index, so only 2 or 4 billion entries. That should not be a problem for you.

    The data type is not limited.

  8. Alberto D

    Jun 7 Pre-Release Testers
    Edited 5 weeks ago

    @Greg OLone Could you point me to where you found that?

    https://docs.xojo.com/UserGuide:64-Bit_Guidelines
    Other 64-bit Information

  9. Greg O

    Jun 7 Xojo Inc

    @Alberto D;Poo https://docs.xojo.com/UserGuide:64-Bit_Guidelines
    Other 64-bit Information

    Thank you. I've created a case for adding that note to the relevant Language Reference pages.
    Feedback Case #55969

  10. Greg O

    Jun 7 Xojo Inc

    It's worth noting that Arrays are not actually limited to 32-bit in size, it is the array indexes that are limited to 32-bit. I would argue that if you have a need to for an array that has two billion items in it, you should probably be using a MemoryBlock anyway.

  11. Norman P

    Jun 7 Pre-Release Testers, Xojo Pro www.great-white-software.com/b...
    Edited 5 weeks ago

    there's a funky edge case right around the max of a signed int32

    Const i As Integer = &h7FFFFFFF
Dim i1 As Integer = i
Dim d(i) As UInt8
d(i) = 1

Break

    wont work
    but changing the const to &h7FFFFFFE (1 less) does

    Feedback Case #55970

or Sign Up to reply!