NetBSD 6.1.5 doesn't have ldexpl in math.h

[Gary E. Miller]

Yo Hal!

On Thu, 07 Sep 2017 16:23:04 -0700
Hal Murray <hmurray at megapathdsl.net> wrote:

> [Using ldexp when ldexpl isn't available.]
> > Serious loss of precision, but maybe the best we can do.  
> 
> Does anybody have any data on how serious that would be?

Yes, a float is 56 bits of precision.  a timespec is 64 bits.

> Does ntp classic do anything interesting in this area?  (That's the
> sort of thing that Dave Mills is likely to have thought about.)

ntp classic uses interger math, ntpsec uses double.

RGDS
GARY
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Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
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    "If you can’t measure it, you can’t improve it." - Lord Kelvin
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