--- layout: fc_discuss_archives title: Message 26 from Frama-C-discuss on July 2016 ---
On Thu, Jul 28, 2016 at 4:05 PM, Pascal Cuoq <pascal.cuoq at gmail.com> wrote: > Hello, > > On Thu, Jul 28, 2016 at 9:13 PM, Timothy E. Wang <zepeem at gmail.com> wrote: > >> A quick question. I am trying to get Value to take into account the >> post-conditions that are part of the specifications of a library function. >> I have a simple example below. The output of the _sin function is >> guaranteed to be within the interval [-1,1] but for some reason Value is >> still returning [-MAX_FLOAT, MAX_FLOAT] for the variable y in the main >> function. Any clue why this is happening? >> >> > try this: > > /*@ requires \is_finite(x); > > @ assigns \result \from x; > > @ ensures \is_finite(\result); > > @ ensures \result>=-1.0 && \result <=1.0; > > */ > > double _sin(double x); > Thanks Pascal! _______________________________________________ Frama-c-discuss mailing list Frama-c-discuss at lists.gforge.inria.fr http://lists.gforge.inria.fr/mailman/listinfo/frama-c-discuss -- Future planes will have one pilot and one dog in the cockpit. The pilot's job will be to feed the dog. The dog's job will be to make sure the pilot stays away from the instruments. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.gforge.inria.fr/pipermail/frama-c-discuss/attachments/20160729/88f51de2/attachment.html>