use integer;

then try some integer math and see how big you can make your integers before they go negative. =)

Tony

Thomas Drugeon wrote:

Hi,

Is there a way to know if the Perl interpreter running the script was
compiled for 64 bits?
I want to use 'vec' with a number of bits of 64, but it would fail on 32bits
platforms, and so I would switch to 32 in this case.

I could try to eval a 'vec($_, 0, 64)' or something, but...

Thanks in advance
Thomas

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