Random numbers and Endians

[donJ]

Hi,
I have an app that uses the Xojo random class with seeds to create
repeatable strings of pseudorandomly selected numbers. It worked fine
until I made a 64 bit version. A file saved on a 32 system bit does not
open correctly on a 64 bit system.
A little research indicates that this is due to the Random class
depending on Endianess.
So I think the simplest way to fix this is to find (or write) a random
method that does not depend on Endianess. Does one exist? Or can someone
point me to some information about it?

Thanks,

Don


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[Jean-Luc Arnaud]

Maybe you could read the file in a MemoryBlock and change the Endian
property before rewriting it on disk?

Jean-Luc Arnaud

Post by donJ
Hi,
I have an app that uses the Xojo random class with seeds to create
repeatable strings of pseudorandomly selected numbers. It worked fine
until I made a 64 bit version. A file saved on a 32 system bit does
not open correctly on a 64 bit system.
A little research indicates that this is due to the Random class
depending on Endianess.
So I think the simplest way to fix this is to find (or write) a random
method that does not depend on Endianess. Does one exist? Or can
someone point me to some information about it?
Thanks,
Don

To unsubscribe, email ***@xojo.com

[donJ]

Hi Jean-Luc,
Thank you for the idea, but I think I am mistaken about the problem.
When I start with a new empty app, I get the same result on both
systems, so I need to investigate more,

Thanks for your time.
Don

Post by Jean-Luc Arnaud
Maybe you could read the file in a MemoryBlock and change the Endian
property before rewriting it on disk?
Jean-Luc Arnaud

Post by donJ
Hi,
I have an app that uses the Xojo random class with seeds to create
repeatable strings of pseudorandomly selected numbers. It worked fine
until I made a 64 bit version. A file saved on a 32 system bit does
not open correctly on a 64 bit system.
A little research indicates that this is due to the Random class
depending on Endianess.
So I think the simplest way to fix this is to find (or write) a
random method that does not depend on Endianess. Does one exist? Or
can someone point me to some information about it?
Thanks,
Don

To unsubscribe, email ***@xojo.com