On Wed, Mar 25, 2009 at 12:40 AM, robert song <robertsong.linux@xxxxxxxxx> wrote: > Hello, everyone. > Now I am using Pettis-Hansen method as follows to reorder functions. > http://www.cs.virginia.edu/kim/courses/cs771/papers/pettis90profile.pdf > > But I found that the algorithm has its patent as below. > http://www.freepatentsonline.com/EP0459192.html > > So if I use this algorithm in my codes, it will infringe the HP patent. > Does it mean that this algorithm can not be used in codes ? > Is there any method to deal with this problem ? > > Best wishes, > robert > I agree with Ric on this one. You're far better off to never look at any patents and not discuss them either. For a variety of reasons: a) Knowingly infringing has x3 the penalty. b) You're drawing attention where none should be. c) Almost all of these patents are untenable And such is the unfair nature of patents. I bet some of my code accidentally "infringes" a dozen patents. Completely ignore them completely unless you're doing something like a clone of some commercial software, where you'll need to tread carefully . P.S. I'm not a patent lawyer, but I read through the patent. And people have been doing optimising like this for well over 30 years in assembly. And considering the patent was filed for a compiler method of doing it, in 1991 -- I have no doubt it was in every major compiler by then. Worthless patent as far as I can tell. > -- > fedora-devel-list mailing list > fedora-devel-list@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/fedora-devel-list > -- Eric Springer, PGP Fingerprint: 097D E98D 9278 FE86 2659 2959 DA9E 90BD F183 2F88 -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
