Bertrand Meyer's technology+ blog
Software engineering, programming methodology, languages, verification, general technology, publication culture, and more
Bertrand Meyer Could someone please explain what there is to celebrate when a candidate is elected to a political function? The grotesque ideas of a victory rally or an inauguration ceremony defy common sense. An election success is an opportunity to start doing something good. It is not an achievement; it is the promise of possible achievements … Read more
If you want to know whether your_string has at least one upper-case character, you will write this in Eiffel: if ∃ c: your_string ¦ c.is_upper then … Such predicate-calculus boolean expressions, using a quantifier ∀ (“for all”) or ∃ (“there exists”) are becoming common in Eiffel code. They are particularly useful in Design by Contract … Read more
A group of us is preparing a survey on systems that have been both formally verified and deployed for actual use. To make sure we do not forget any important development, we have devised a questionnaire. If you have experience with such a system, please help by filling the questionnaire. It only includes a few … Read more
I have started a new series of video lectures, which I call “Meyer’s Object-Oriented Classes” (MOOC). The goal is to share insights I have gained over the years on various aspects of programming and software engineering. Many presentations are focused on one area, such as coding, design, analysis, theoretical computer science (even there you find … Read more
Received this today from a heretofore unknown correspondent (I don’t often check Facebook Messenger but just happened to). Name removed (I am not sure he would want me to identify him), text translated from another language into English. Hello, thanks for your book “Object-Oriented Software Construction” [read in a translation]. I read it after a … Read more
A 1949 book I just bought* has the following printer’s label, hand-glued on the title page: Because of a change in pagination, you will need to add the digit 9 [actually, the number, not the digit] to references to page numbers between 1 and 114, and the digit 8 to those between 116 and the … Read more
Vous souvenez-vous de ce discours ? Françaises, Français, mes chers compatriotes, Je voulais vous parler hier mais on m’a dit que l’expression “appel du 18 juin” était déjà prise et j’ai décidé d’attendre jusqu’aujourd’hui, 19 juin 2020. Un jour ne devrait pas faire une grande différence. Mon message à toutes et à tous est simple … Read more
What can you do to or with an algorithm? In other words, what is a good verb to substitute for the hyphen in “— the algorithm”? You can learn an algorithm. Discovering classical algorithms is a large part of the Bildungsroman of a computer scientist. Sorting algorithms, graph algorithms, parsing algorithms, numerical algorithms, matrix algorithms, graphical … Read more
No one seems until now [1] to have identified a key element of any scientific article being submitted or revised for publication. It is guaranteed to increase, if not the quality of your articles, at least their chances of publication, which after all is what counts. We are told to include a “related work” section, … Read more
The Schaffhausen Institute of Technology (SIT) is holding a Webinar tomorrow with a set of three talks by: Serguei Beloussov, founder of Acronis and president of SIT; Michael Widenius, CTO of MariaDB and creator of MySQL Server; and Mauro Pezzè, my colleague at SIT, who will present the new master program that we have just … Read more