I do precise accurate stuff with Racket, because it syncs current-ms with external time sources. Ironically, the environments that overtly fuss over human issues like leap seconds are the environments that *cannot* be used.
RAC On Jun 3, 2011, at 6:47 PM, "Geoffrey S. Knauth" <ge...@knauth.org> wrote: > Just curious. The contact for find-seconds parameter second (integer-in 0 > 61) instead of (integer-in 0 59). [1] > > The Java definition of a Date [2] states "the values 60 and 61 occur only for > leap seconds and even then only in Java implementations that actually track > leap seconds correctly," which made me wonder if the values 60 or 61 were > actually used by Racket. According to [3], we've had one leap second at the > end of 2005 and 2008. Does any PLT Scheme or Racket code actually track or > use those leap seconds? I guess if I were using Racket to fire reverse > thrusters for re-entry on the space shuttle, I might want to know, since the > shuttle moves along at six miles per second. > > Geoff > > [1] Reference:Racket ยง 14.6 Time > [2] http://download.oracle.com/javase/7/docs/api/java/util/Date.html > [3] http://en.wikipedia.org/wiki/Leap_second > _________________________________________________ > For list-related administrative tasks: > http://lists.racket-lang.org/listinfo/users
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