Re^5: Largest integer in 64-bit perl

[LanX]

> the power operator (**) always returns an NV

sure that's why I said we must stay in the "realm of integers" for a proper binary search.

I'm not sure about the "always" tho

> You might be better off using the << operator:

That's the classic approach, but I would choose a "pure" algorithm using + only, to find the point where adding two integers creates a non-integer.