In message <[EMAIL PROTECTED]>, Zefram writes: >Ashley Yakeley wrote:
>>In the Haskell time library, I represent UTC time by what seemed to >>me the simplest possible correct type. This is a record containing an >>integer to represent day number (as MJD), and a fixed-point decimal >>(picosecond resolution) to represent seconds since midnight. The >>allowed range for this is 0 to 86400.999999999999. > >That's a pretty good format. That's a pretty bad format. Computers are binary and having pseudo-decimal fields like tv_usec in timeval, tv_nsec in timespec and picoseconds in Haskell is both inefficient and stupid. The fractional part should be a binary field, so that the width can be adjusted to whatever precision and wordsize is relevant. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 [EMAIL PROTECTED] | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
