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User: qrczak

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  1. Re:Isn't it childish? on GPL to be Modified to Penalize Patents and DRM · · Score: 1

    FSF says so in GPL, and I trust them (emphasis mine):

    13. The Free Software Foundation may publish revised and/or new versions of the Library General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns.

  2. Leap seconds are harmful on U.S. Moves to Kill Leap Seconds · · Score: 1

    How should general purpose computers represent timestamps?

    1. In UTC, when leap seconds are in force. Problem: if you want to accurately measure the time difference between two timestamps, all running processes must periodically examine a central leap second table updated at least every 6 months. There is no infrastructure for this in common OSes, so in practice you can't measure the difference. The system time just runs in a non-uniform speed. This is the current situation.
    2. In TAI, when leap seconds are in force. Problem: if you want to convert timestamps to y-m-d h:m:s, all running processes must periodically examine a central leap second table. This is the situation that GNU libc proposes as an alternative by setting the timezone to "right" instead of "POSIX".
    3. When there are no leap seconds: no problems. Astronomers will just use the same Earth rotation speed tables that all computers must use today.

    Having leap seconds is like making timezones with 1-second granulation instead of the current 1-hour.