I came from mainframes, FORTRAN, ASSEMBLER, etc...

Then you should understand the problems of trying to fit a 64-bit value in a 32-bit integer or 53-bit precision float.

I did do was include the following in my source code: use bignum; print MATH::BIGINT->new("0xbe91cfb586466d02"); Now, interestingly enough, the following printed out: 1373198511737814553812

The module is Math::BigInt. That doesn't run.

This is the second time you've told us you got A from B when you didn't.

Now, interestingly enough, the following printed out: 1373198511737814553812 - ..where did the final '12' come from? ..was it the semicolon?

What semicolon? 0x12 is the code point for newline in ASCII-based character sets. Seems the code you showed us is not even close to what you used.

In reply to Re^9: converting large hex values by ikegami
in thread converting large hex values by Spooky

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