I have meanwhile thought of another way to get what you want: sprintf

I don't quite follow. At its simplest, what I want is to have a string like '1.44115188075868217e17' converted to the numeric value 144115188075868217 on a use64bitint build of perl that doesn't have long doubles. I can't see a way of doing that using (s)printf. I find that printf "%d", '1.44115188075868217e17' produces 144115188075868224. Sorry if I've missed the point. (I do that sometimes :-)

By looking at the sign, mantissa, and exponent it's not all that difficult to get the required result - and that's pretty much how I'll be doing it. Thanks Moron.

Cheers,
Rob

In reply to Re^4: Exasperated with 64-bit integer builds of perl by syphilis
in thread Exasperated with 64-bit integer builds of perl by syphilis

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