--- layout: fc_discuss_archives title: Message 40 from Frama-C-discuss on December 2008 ---
Hi, As far as I understand the question, implication is logical implication. The other alternative, "conditional evaluation", does not make sense to me since terms and propositions given as annotations are not meant to be "executed". My guess is that you are thinking about annotations like //@ assert p != NULL ==> *p == ... where the meaning of *p on the right is undefined if the left part is not true. Such "undefinedness" issues are discussed in section 2.2.2 of ACSL document (Logic Expressions/Semantics) and for further info I recommend reading the work of P. Chalin cited there. - Claude Christoph Weber wrote: > Hello, > > I would like to know, how the implication in the ACSL must be interpreted. > > Is it a logical implication, that returns a boolean, in each case? > > Or is it like a conditional evaluation, where the right-hand-side is only evaluated when the left-hand-side returns true? > > I hope my question makes sense to you. > > Cheers > > Christoph > > > ------------------------------------------------------------------------ > > _______________________________________________ > Frama-c-discuss mailing list > Frama-c-discuss at lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/frama-c-discuss -- Claude March? | tel: +33 1 72 92 59 69 INRIA Saclay - ?le-de-France | mobile: +33 6 33 14 57 93 Parc Orsay Universit? | fax: +33 1 74 85 42 29 4, rue Jacques Monod - B?timent N | http://www.lri.fr/~marche/ F-91893 ORSAY Cedex |