If this is not a toy program I would really suggest using something that is builtin in the OS of choice. On Linux there is inotify ( http://en.wikipedia.org/wiki/Inotify), but I'm pretty sure that other OSes have similar interfaces. The "modification time" method seems really fragile and I probably not very efficient as well.
Best regards, Krzysztof Skrzętnicki On Thu, Dec 16, 2010 at 17:50, Arnaud Bailly <[email protected]> wrote: > actually, IRL the code works as expected. Might it be possible that > the speed of test execution is greater than the granularity of the > system's modification timestamp? > > _______________________________________________ > Haskell-Cafe mailing list > [email protected] > http://www.haskell.org/mailman/listinfo/haskell-cafe >
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