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Re: [gpsd-dev] Print offset in ntpshmmon?
From: |
Gary E. Miller |
Subject: |
Re: [gpsd-dev] Print offset in ntpshmmon? |
Date: |
Fri, 1 May 2015 12:06:36 -0700 |
Yo Beat!
On Fri, 01 May 2015 21:00:08 +0200
Beat Bolli <address@hidden> wrote:
> On 01.05.15 20:53, Gary E. Miller wrote:
> > Yo Beat!
> >
> > On Fri, 01 May 2015 20:46:31 +0200
> > Beat Bolli <address@hidden> wrote:
> >
> >> On 30.04.15 20:08, Gary E. Miller wrote:
> >>
> >>> How long is a python long? 32 bit longs are not big enough. 64
> >>> bit longs will not be big enough in 2038. Google '2038 NTP'.
> >>
> >> Python longs have unlimited (well, technically limited by available
> >> RAM) size. No problem to calculate the 1000!.
> >
> > Got a canonical reference for that?
>
> https://docs.python.org/2/reference/lexical_analysis.html#integer-and-long-integer-literals
That is for literals. What about in computations?
> > How long is a float?
>
> From the very following section on the page above:
>
> > The allowed range of floating point literals is implementation-
> > dependent.
>
> :-( I assume this means that CPython floats use the C compiler's
> double.
>
> How about using https://en.wikipedia.org/wiki/Long_double ?
In theory, yes, on am ARM with no FPU that would be criminally slow.
So depends on the application I guess.
RGDS
GARY
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Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97701
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