Messages in this thread | | | Subject | Re: Non-urgent issue with fs/isofs/util.c | From | Andreas Schwab <> | Date | 18 Sep 1998 11:52:33 +0200 |
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"Helge Hafting" <helge.hafting@daldata.no> writes:
|> In <19980918151457.C9740@harvestroad.com.au>, on 09/18/98 |> at 03:14 PM, Ian McKellar <imckellar@harvestroad.com.au> said: |> >I don't think we need to be to concerned right now, but changing: |> > if (((year+2) % 4) == 0 && month > 2) |> >to: |> > if (((year+2) % 4) == 0 && month > 2 && year != 130) should |> >fix it. |> The equivalent code |> if (!((year+2) & 3) && month > 2 && year != 130) is probably |> faster. The somewhat expensive mod operator is |> replaced by a bitwise "and", that is faster on most platforms.
GCC does that conversion by itself.
-- Andreas Schwab "And now for something schwab@issan.informatik.uni-dortmund.de completely different" schwab@gnu.org
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