Re: [gpsd-dev] ✘CEP(50) 0.285 metersMime-Version: 1.0

[Fred Wright]

On Fri, 22 Jul 2016, Gary E. Miller wrote:

> My main attack for a while will we be in geting the numeric precision
> solid.  Calculating things to about 11 significant decimal digits is
> harder than it looks.  A 64 bit long is only about 10 decimal digits.

Umm, a *64-bit* long is about 19 decimal digits.  Though a double is only
good for about 15.

> For example, my longitude is 121.314064921W, but a long can only
> hold 2147483647.

Then it must be a 32-bit long.

Fred Wright