A Perl NV can exactly represent any 52-bit integer (53 if you count the sign bit) on almost any platform
Good point. By the way: can floating point arithmatic on integers (I mean operations on < 52 bit ints stored in doubles) lose precision? Is that something you should be worried about?

"What should it profit a man, if he should win a flame war, yet lose his cool?"

In reply to Re^3: Supporting long long types in XS (NV,PV) by Joost
in thread Supporting long long types in XS by chrisdolan

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