Re: time since the epoch

Dear Juanma, thanks for your remarks. Juanma Barranquero (Mon, Nov 10, 2003 at 10:54:22AM +0100):

On Fri, 7 Nov 2003 19:55:47 +0100 Stefan Karrmann wrote:

...

I've inserted 'convert = (uncurry cFromTai) . cToTai'.

Great, thanks.

...

A fixed and checked version is appended and carbon copied to .

What's haskell-libs-developers? I thought libraries' development was carried over on libraries@haskell.org... (And shouldn't we be discussing Tai.lhs there, BTW :)

Well, the original thread was on this list. I'm moving it to libraries@haskell.org now.

I'm attaching a patch (diff -u2) with a few small changes:

I've included it.

More coments:

- I'm sending you the patch throw the Haskell list because previous attempts of sending to your e-mail address failed.

I'm using ASK as a spam killer. Do you have problems with it?

- Are you very fond of the literate style? I ask because unlit'ing it would allow adding Haddock coments, which would be nice.

I've given it a try, but my comment marking could be improved.

- I'm not sure I like depending on a leapseconds table hardcoded in the source, even if it changes slowly. Wouldn't it be better to have the data in a file and load it through unsafePerformIO? (And isn't loading configuration data one of the few "good" examples of use of unsafePerformIO, after all? :)

Well, I included the two as examples. The empty one is correct for all times before 1970-01-01. That's more than ten billion years.

- I get a warning with -Wall:

Warning: Defined but not used: TimeDiff, days_from_MJD2unixEpoch, days_from_unixEpoch2MJD', hours_per_day, isodelta, isomoveDHM, isomoveS, isomoveYM, libtaiEpoch, month_per_year, test, test2

Some values are only for testing and debugging while others are experimental, e.g. TimeDiff and friends.

Several of these are neither used nor exported. ???

Regards, -- Stefan Karrmann