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Dani ( Antifascista)

@DanielaKEngert@hachyderm.io

mastodon 4.7.3

C++ nerd, WG21, INFJ, electrical engineer, she/her, science connoisseur, jazz addict
Sponsoring member: Wikimedia, Greenpeace, Digitalcourage, noyb, and more
@DanielaKEngert@hachyderm.io

583 Followers

275 Following

49 Posts

Joined November 21, 2022

WEBSITE:

https://ngrt.de/

Codeberg:

https://codeberg.org/DanielaE

:github_logo::

https://github.com/DanielaE

PGP Key:

2CCB3ECB09545CD3B0DB6AA0BA0356A12C4638C5

Antifascista) @DanielaKEngert@hachyderm.io

· 2w ago

I'm preparing to leave for the NDC {TechTown} conference in Kongsberg, Norway in about 2 hours. Travel might become ... interesting:

The first leg, the subway ride from my flat to the airport, is pretty save. The flight to Oslo, Norway has no "customer notice" - yet, so 🤞. But the train ride from Gardermoen to Kongsberg might become an adventure due to strike action, cancelled trains, and track maintenance work.

Let's hope I'll make it there without too many surprises... 🙏

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Antifascista) @DanielaKEngert@hachyderm.io

· 3mo ago

Replying to

@Mara@hachyderm.io @chandlerc@hachyderm.io (me spilling my coffee seeing the price tag) 😮

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Antifascista) @DanielaKEngert@hachyderm.io

· 7mo ago

Replying to

@lefticus @rollbear Last year, my colleague returned back home after a visit at a customer site in the US, bragging about the perceivedly wrong code generation that he witnessed due to a customer complaint he was investigating. The pub-quiz like question was asking about "what is wrong with this machine code sequence, coming from these few C++ code lines?"

I instantly found three cases of UB in there, without even digging deeper.

This means:

C++ is full of UB traps that average developers have a hard time to see
without better education, the situation will hardly improve
without putting us committee members more into the shoes of non-cabal devopers, it will deteriorate further

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Antifascista) @DanielaKEngert@hachyderm.io

· 6mo ago

I finally made it back home from Madrid, Spain, where the annual 'using std::cpp' conference was held during the past three days!

On day 2, I had my presentation on how to improve build times by concious and judicious use of language features. The slides can be found here, for those who are interested:

https://codeberg.org/DanielaE/Slides/src/branch/main/pdf/same-c++-but-faster-using-std-cpp-2026.pdf

Next stop: Croydon (*Kent*, definitely *not* London as I was assured by a well-known person who grew up nearby in Kent).

This is where C++26 is supposed to be finally baked and delivered, to be then put through a decisive taste test.

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Antifascista) @DanielaKEngert@hachyderm.io

· 9mo ago

Replying to

@veronica Thank you for sharing this article! My diploma thesis (in EE sic!) in 1988 was about a classification problem. It used all computing power I could get hold off to run reasonably-sized neural networks and train them. The results were disappointing. Nearly 20 years later, I applied a ML-based clustering algorithm to learn all currently detectable radio emissions from low short wave up to multiple GHz (a SIGINT system on a submarine). The results were good enough to meet expectations. Nearly 20 more years later, such useful ML systems are utterly conflated with overhyped Gen AI, or the fabled AGI. Too many people can't tell those apart, thereby enshittifying our world.

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Antifascista) @DanielaKEngert@hachyderm.io

· 6mo ago

Replying to

@lefticus Oh no, this will explicit(true) !arrive here in consteval time before in std::move(self) to Madrid next std::chrono::Monday to std::cout << my::talk. I'm devastated 😢

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Antifascista) @DanielaKEngert@hachyderm.io

· 5mo ago

Replying to

@vitaut Welcome to the club! I renovated pretty much the entire interior (except for parts of the heating system) of my parent's house two years ago. Should be good for the upcoming 50 years now, and is prepared for a heat pump instead of burning gas. On to the house next to it. Planned for summer.

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Antifascista) @DanielaKEngert@hachyderm.io

· 5mo ago

Replying to

@matus_chochlik @vitaut I know this gulag-y experience from my youth as well: my dad inherited his dad's house in the late 70s, and it became a makeshift construction site for the next three years with my brother, mom, dad, and me impersonating construction workers literally every weekend. On the positive side: it got one of the first air-to-water heat pumps in the early 80s.

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Antifascista) @DanielaKEngert@hachyderm.io

· 6mo ago

Replying to

@compfu@mograph.social @cark@social.tchncs.de Selbstreferentialität ist 😎🤘

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Antifascista) @DanielaKEngert@hachyderm.io

· 7mo ago

Replying to

@rollbear @lefticus Oh, sweet summerchild 🤭

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Antifascista) @DanielaKEngert@hachyderm.io

· 7mo ago

Replying to

@rollbear @lefticus The latter is the hardest part. How to instill that those people live on borrowed time?

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Antifascista) @DanielaKEngert@hachyderm.io

· 5mo ago

Replying to

@dermojo@hachyderm.io Otherwise they'd have to rely on decently trained LLMs to discern key presses by their click sounds, right?

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Antifascista) @DanielaKEngert@hachyderm.io

· 9mo ago

Replying to

@PeterSommerlad@mastodon.social @vitaut@mastodon.social Writing unit tests (and actually running them) is a constant uphill battle when powerful proponents in a company see this as an easily expendable burden that's hurting the bottom line. I don't want to end up like Kassandra.

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Antifascista) @DanielaKEngert@hachyderm.io

· 10mo ago

Replying to

@teodorsandu@mastodon.online I you like to be pedantic: it's actually zero 😂🤘🤭

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Antifascista) @DanielaKEngert@hachyderm.io

· 10mo ago

Replying to

@vitaut@mastodon.social @JSAMcFarlane@mastodon.ie @meetingcpp@mastodon.online You can tell that again to our customers. Quite recently, in a machine for a steel mill, the developer on the customer team dared to complain about my rigorous input sanitation of their data telegrams, sorting out nonsensical data and showing alerts to the operators about the findings and missed specifications, with words like: "we have so many special cases that we find and read from our databases. Hence we can't test them all and guarantee correct data for our machine operation before we enter life production stage". No further comments from our side...

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Antifascista) @DanielaKEngert@hachyderm.io

· 10mo ago

Replying to

@JSAMcFarlane@mastodon.ie @vitaut@mastodon.social @meetingcpp@mastodon.online Not sanitizing input that one receives over whichever network is a cardinal sin in engineering: you *must* be able to deal with a so-called "babbling idiot" that dispenses meaningless nonsense to a communication channel.

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Antifascista) @DanielaKEngert@hachyderm.io

· 5mo ago

Replying to

@rollbear Seems to match the stereotype. 🙄 Personally, I found *reading* any of written Norwegian, Danish, Swedish (in the order of familiarity to me) quite easy to manageable. *Listening* to any of them, and figuring out the meaning of the sounds as spoken by people on the streets is a completely different level. Last year, at a café in Stockholm, I met a group of Norwegians from an island way up north. We had nice conversations, loved it. But as soon they were talking to each other in their native language, I had huge troubles to even recognize some of the spoken words, lest alone to get the gist of their conversation. So, it doesn't need Danish to get lost in translation 🤭

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Antifascista) @DanielaKEngert@hachyderm.io

· 5mo ago

Replying to

@mp3tag I've immediately enlarged the toolbar to 150% 😊 Thanks Florian!

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Antifascista) @DanielaKEngert@hachyderm.io

· 6mo ago

Replying to

@fbuontempo@mastodon.social @OReillyMedia@techhub.social I totally understand this. Smiling to the camera was quite a challenge to me as well when we took the official C++26 committee pictures in "definitely Kent" Croydon. 🙄

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Antifascista) @DanielaKEngert@hachyderm.io

· 6mo ago

Replying to

@fbuontempo@mastodon.social You mean "Siouxie & the Banshees", right? Billy Idol wasn't my favourite when still with Generation X, I liked his music more after he started his solo career.

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Antifascista) @DanielaKEngert@hachyderm.io

· 6mo ago

Replying to

@vitaut Sure. The factor right of X in 'Space X ' rounds down to nothing.

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Antifascista) @DanielaKEngert@hachyderm.io

· 7mo ago

Replying to

@chrisstoecker@mastodon.social Danke, völlig richtig - nur: was hilft's?

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Antifascista) @DanielaKEngert@hachyderm.io

· 34mo ago

Replying to

@PeterSommerlad@mastodon.social @alilleybrinker@hachyderm.io The last sentence in that document summarizes that quite well: "For applications where safety or security issues are paramount, contemporary C++ continues to be an excellent choice." Using *contemporary C++* ruled out *all* memory safety problems (and more) that I've been haunted by before embracing such design approaches ten years ago. It's not the language, it's the mindset. Subverting safety in "safe" languages? Been there, done that. None was really safe.

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Antifascista) @DanielaKEngert@hachyderm.io

· 10mo ago

Replying to

@ami@floss.social @JSAMcFarlane@mastodon.ie @vitaut@mastodon.social @meetingcpp@mastodon.online Wat? 😨

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Antifascista) @DanielaKEngert@hachyderm.io

· 34mo ago

Replying to

@lesto@hachyderm.io @PeterSommerlad@mastodon.social @alilleybrinker@hachyderm.io "Contemporary C++" is (for the most part) C++17 and beyond plus all the good stuff from earlier versions of the C++ specification that have stood the test of time. If you develop in this (easy to grasp) part of C++, you're safe and can live a happy developer life. But if you need to (and in some industries you inevitably will!) you can leverage backward compatibility without reaching out to the unsafe, mostly ancient parts of C++ or C by yourself.

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Antifascista) @DanielaKEngert@hachyderm.io

· 13mo ago

Replying to

@kattascha@chaos.social Aledichd (wie mer hald in Franggn so song)

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Antifascista) @DanielaKEngert@hachyderm.io

· 34mo ago

Replying to

@lesto@hachyderm.io Glad you asked 😊

"contemporary C++" is a term that I came up with to describe as succinctly as possible what I intended to convey to the audience in my keynote last year at CppCon. It is deliberate to not have a precise definition. "Contemporary" implies change over time, that's the whole point!

explore
learn
reflect
and then embrace

what a language brings to the table with time. Many languages don't stand still but improve - take advantage!

@PeterSommerlad@mastodon.social @alilleybrinker@hachyderm.io

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Antifascista) @DanielaKEngert@hachyderm.io

· 34mo ago

Replying to

@lesto@hachyderm.io @PeterSommerlad@mastodon.social @alilleybrinker@hachyderm.io What was an interesting moniker for a talk was picked up by people in the audience (like Bjarne) and others, and caught some traction. "Modern C++" was a thing - the shiny new features (and design approach) in the early 2000s. Nobody would call this "modern" anymore despite some ideas still falling into the "contemporary" bucket. And then C++11 with a completely new way of thinking - called "post-modern" by some. Some of that is still "contemporary".

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Antifascista) @DanielaKEngert@hachyderm.io

· 34mo ago

Replying to

@hniemeyer@mastodon.social @PeterSommerlad@mastodon.social @alilleybrinker@hachyderm.io I think there is way too much politics at play here. And dishonesty. Nobody cares as long as funding gets diverted to their direction and pockets. Funding is nice as long as you can stay in the general and don't have to prove anything. A smear campaign directed at people who are not challenged by knowledge or realities helps, ofocz. If such campaigns are in full spin, people can become upset.

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Antifascista) @DanielaKEngert@hachyderm.io

· 10mo ago

Replying to

@mp3tag@mastodon.social In other words, this is the strategy we apply in our company applications: To determine the space on the *real* volume that is storing a file, given by a *user-facing* path - possibly starting on a different volume - we follow all symlinks, hardlinks, junctions (i.e. all reparse points) to discover the volume at the other end of the chain as specified by the given file path.

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Antifascista) @DanielaKEngert@hachyderm.io

· 6mo ago

Replying to

@manx@mastodon.online @andreasfertig@mas.to The required alignment check is probably so easy to miss that I would be surprised, if it isn't already called out in P3100, and on our plate for C++29 😊

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Antifascista) @DanielaKEngert@hachyderm.io

· 6mo ago

Replying to

@manx@mastodon.online @andreasfertig@mas.to I'm not sure if I follow you. If you are willing to bring a code example (e.g. Compile Explorer) where you can substantiate your claim, we can look at it in the committee and see what we can do.

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Antifascista) @DanielaKEngert@hachyderm.io

· 6mo ago

Replying to

@Sdowney Still in Britain? 😮

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Antifascista) @DanielaKEngert@hachyderm.io

· 44mo ago

Replying to

@nixCraft Sure, I do. But who remembers Turbo Pascal 1.0 on CP/M? It was such a revelation and joy to work with.

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Antifascista) @DanielaKEngert@hachyderm.io

· 5mo ago

Replying to

@rollbear I very rarely remember my dreams well enough to assess their color fidelity. It could be SECAM, PAL, NTSC, or possibly even going back to Nipkow.

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Antifascista) @DanielaKEngert@hachyderm.io

· 5mo ago

Replying to

@heine@chaos.social a.k.a. "flooding the zone with 💩" Entwickelt von MAGA Strategen, gerne genommen von Populisten, Narzissten, und anderen Selbstdarstellern jeder Coleur.

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Antifascista) @DanielaKEngert@hachyderm.io

· 7mo ago

Replying to

@Mara Dreamt up - oops: hallucinated, right?

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Antifascista) @DanielaKEngert@hachyderm.io

· 9mo ago

Replying to

@marcuwekling@cultur.social Mist, so langsam gehen mir die Alternativen aus 😢🤭

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Antifascista) @DanielaKEngert@hachyderm.io

· 2mo ago

Replying to

@charette@mstdn.ca Absolutely! I have switched over to named boolean operators about 5 years ago for improved clarity and readability. On top of that, a single '!' or a missing '!' is easily overlooked.

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Antifascista) @DanielaKEngert@hachyderm.io

· 5mo ago

Replying to

@ralphruthe@troet.cafe Definitiv. Nur ist da leider jede Menge Vocoder im Spiel. Mit der Originalstimme von CK hat das leider nur begrenzt viel zu tun.

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Antifascista) @DanielaKEngert@hachyderm.io

· 10mo ago

Replying to

@mp3tag@mastodon.social Thanks - makes sense! In this particular case, volume M is a small partition of my huge storage disk, where some junctions point to the actual directories on the second volume N of said disk. This not-so-common scheme comes from a consolidation of my cold storage onto a single disk where I needed to retain old volume names for compatibility with some software, installed eons ago.

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Antifascista) @DanielaKEngert@hachyderm.io

· 6mo ago

Replying to

@manx@mastodon.online @andreasfertig@mas.to

The std::start_lifetime_as*() functions have constraints that e.g. reinterpret_cast<>() doesn't have:

type constraints: https://eel.is/c++draft/mem#obj.lifetime-1
position constraints: https://eel.is/c++draft/mem#obj.lifetime-2

The latter is a precondition that could be strengthened and (partially) unconditionally checked for in a hardened standard library implementation.

The former removes affected overloads when the constraints are not satisfied.

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Antifascista) @DanielaKEngert@hachyderm.io

· 6mo ago

Replying to

@fbuontempo@mastodon.social @OReillyMedia@techhub.social Fran, congratulations! But you look a little indifferent to the prospect of being introduced to the world of C++, right?

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Antifascista) @DanielaKEngert@hachyderm.io

· 6mo ago

Replying to

@manx@mastodon.online @andreasfertig@mas.to Wat? You're asking for mandatory aligment tests by the user but also claim that such tests are not reliably doable by the implementation? Now, you see me puzzled...

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Antifascista) @DanielaKEngert@hachyderm.io

· 7mo ago

Replying to

@lefebvre@hachyderm.io On the flip side: who doesn't?

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Antifascista) @DanielaKEngert@hachyderm.io

· 10mo ago

Replying to

@mp3tag@mastodon.social Florian, that's great! Alas, there's one thing that irks me: whenever I want to edit a file in my music collection, Mp3tag complains about lack of free space, like e.g. "Stellen Sie mindestens 318,28 MB Speicherplatz bereit" - on a disk that TotalCommander reports as "9.815.086.964 k frei von 15.583.645.396 k". Maybe, there's a fix for that some time in the future?

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Antifascista) @DanielaKEngert@hachyderm.io

· 5mo ago

Replying to

@phlox81@mastodon.social Referenz?

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Antifascista) @DanielaKEngert@hachyderm.io

· 9mo ago

Replying to

@ausir@wandering.shop Four random thoughts: 1) the US of A are geographically way larger than Greenland 2) the US of A occupy just a fraction of the entire land mass of the Americas 3) the other contries on the same continent have much larger natural wealth than the US of A 4) Danmark is considered "expendable" by the mobsters in the White House Four good reasons to disregard everything and invade other countries, right?

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Antifascista) @DanielaKEngert@hachyderm.io

· 8mo ago

Replying to

@georgetakei George, ICE isn't Gestapo - it's something in between SS and SA. I.e. much worse than Gestapo. Gestapo was the *secret* police. SS and SA were the *openly acting* Nazi thugs, performing the terror and atrocities the world is speaking about.

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