Frama-C CRlibm is a high-quality library of floating-point elementary functions. We used it as reference a long time ago in this blog while looking at lesser elementary function implementations and the even lesser properties we could verify about them. A bold choice The CRlibm documentation contains this snippet: […] it may...
Read MoreIn a recent post, John Regehr reports on undefined behaviors in Coq! In Coq! Coq! Exclamation point! Coq is a proof assistant. It looks over your shoulder and tells you what remains to be done while you are elaborating a mathematical proof. Coq has been used to check that the...
Read MoreFrom Facebook to Silent Circle Some computers at Facebook were recently compromised because of a zero-day in Java. Nothing unexpected. Last december instead of writing a full blog post I lazily linked to Robert Graham predicting this sort of thing for the year 2013. Speaking of Facebook do you know...
Read MoreSeminar As anticipated, I was at my alma mater's student seminar last tuesday. School and seminar were very much like I remembered them. The latter was improved by orange juice and biscuits to chat around after the talk, that I do not think were part of the protocol when I...
Read MoreThe recent posts on extremely minor undefined behaviors in zlib neatly tie in with a discussion on John Regehr's blog about the future-proofitude of C and C++. Another insightful post in this regard is this one by Derek Jones. Derek claims that the situation is different for proprietary compilers with...
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