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Hi Luiz,

> On Dec 17, 2014, at 11:39 AM, Luiz Henrique de Figueiredo <> wrote:
>>> began = os.clock ()
>>> local elapsed = os.difftime (os.clock (), began)
> os.difftime is meant to be used with numbers returned by os.time, not os.clock.
> In POSIX systems, you can simply subtract the numbers, in both cases.
> Perhaps the manual should say so.

Yikes!  Yes please, I've been abusing it in luaposix *and* specl for quite some time
having not known any better :-/

Gary V. Vaughan (gary AT vaughan DOT pe)