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Diffstat (limited to 'devel/libtai/pkg-descr')
| -rw-r--r-- | devel/libtai/pkg-descr | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/devel/libtai/pkg-descr b/devel/libtai/pkg-descr new file mode 100644 index 000000000000..22dd7e3f052b --- /dev/null +++ b/devel/libtai/pkg-descr @@ -0,0 +1,19 @@ +libtai supports two time scales: (1) TAI64, covering a few hundred +billion years with 1-second precision; (2) TAI64NA, covering the same +period with 1-attosecond precision. Both scales are defined in terms of +TAI, the current international real time standard. + +libtai provides an internal format for TAI64, struct tai, designed for +fast time manipulations. The tai_pack() and tai_unpack() routines +convert between struct tai and a portable 8-byte TAI64 storage format. +libtai provides similar internal and external formats for TAI64NA. + +libtai provides struct caldate to store dates in year-month-day form. It +can convert struct caldate, under the Gregorian calendar, to a modified +Julian day number for easy date arithmetic. + +This version of libtai requires a UNIX system with gettimeofday(). It +will be easy to port to other operating systems with compilers +supporting 64-bit arithmetic. + +WWW: http://cr.yp.to/libtai.html |