Ilya Zakharevich on Mon, 25 Dec 2023 17:04:02 +0100 |
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Re: Finding bitness of gp |
On Sun, Dec 24, 2023 at 10:28:03PM -0800, Ilya Zakharevich wrote: > On Tue, Dec 19, 2023 at 10:50:26AM +0100, Bill Allombert wrote: > > > Should not there be O(1) way to find the current localbitprecision()? > > > Yes, it is called getlocalbitprec(). > > As you could see from this mail thread, this name is not discoverable.¹⁾ Another missing (or not discoverable) piece of info: bitness of gp. It seems to be silly (and very slow with high \p) to do (08:01) gp > bitprecision(bitprecision(1.,1)) %2142 = 64 Or similar (and maybe even more directly needed): maximal exponent of f.p. numbers… Thanks, Ilya