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work in progress in my c23 front end...
thradams.com/web3/index.html
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Thiago Adams @[email protected]
4K posts
Thiago Adams @[email protected]
@thradams
Software engineer interested in C/C++, compilers, IOT, Raspberry Pi, SCADA, WEB Technologies, physics, UK and Europe.
Porto Alegre, Brazil Katılım Nisan 2009
113 Takip Edilen175 Takipçiler
Thiago Adams @[email protected] retweetledi
@Adriksh Memory safety for me is just an automatic review guided by some rules that may need extra information inside the type system.
It will make code easier to maintain and safe .
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@joseph_h_garvin The "::~destructor" in C++ is a callback /*your code here*/ the real destructor/constructor is generated by the compiler. Yes, this feature is not present in defer.
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You can put an RAII struct inside another struct and the inner struct cleanup will run when the outer struct is destroyed. Cleanup and defer can't do this, they're strictly worse unless you count needing to repeat at every use site a "feature" to avoid implicit control flow.
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PSA: Defer and cleanup are not equivalent to RAII. The entire point of RAII is defining the cleanup operation on the *type* which then causes it to automatically happen when necessary, instead of at every use site. Furthermore...
Adriksh@Adriksh
C is hard because you have to manually free every pointer. Actually, you don't. 🤫 The cleanup attribute allows you to define a function that runs automatically when a variable goes out of scope. It's basically RAII/Destructors in C.
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@joseph_h_garvin ...then C++ RAII is attached to the type and cannot be disabled on a per-instance basis. In some cases, this means a new ‘view’ type has to be created.
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Thiago Adams @[email protected] retweetledi
@EskilSteenberg @Adriksh I agree about the downsides of defer.
One advantage is that the code becomes easier to maintain, because surrounding changes are less likely to affect the cleanup code when defer is used.
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@Adriksh Cleanup or Defer as its often called is the worst addition to C (probably comming in C2Y). It creates an invisible jump, its way worse than GoTo. It breaks a fundamental feature of C you can follow it by reading it.
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@pikuma @tuitacarlos Vários sistemas de auto atendimento são muito ruins e confusos.
Português
@tuitacarlos Eu queria era não ter que olhar ou ouvir ninguém na real, mas como quase sempre pago em dinheiro e a maioria das máquinas só aceita cartão, então tem que ir lá pagar com as pessoinhas né. 😬
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🚨 CHOCANTE: pessoas estão preferindo enfrentar filas no caixa humano do que usar o caixa de autoatendimento livre de filas.
estamos vivendo na nova selva
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@metsul Foto sensational. Não sei se tem crédito do fotógrafo(a)?
(Fica se sugestão deixar isso mais visível)
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🔴 REITERAMOS | Frente fria trará muito alto risco de vendavais neste começo de semana. Trata-se de uma situação perigosa em que alguns vendavais podem ser violentos e destrutivos.
‼️ Leia o alerta: ▶️ metsul.com/frente-fria-tr…
Português
Visual Basic 6 was genuinely such a great programming environment. I haven't seen anything else even come close.
Тsфdiиg@tsoding
You used to be able to just create a Native GUI App in 10 seconds. No Electron, no Game Engines, no Web frameworks. Just a lean fast .EXE produced in seconds. Works on any Windows machine WITHOUT Internet connection. Software Development is actually going backwards.
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@antoniosarosi I use linked lists all the time .
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Linked lists where invented by CS professors to teach data structures with a simple example. They're useless in real programming.
Saquib Aftab@iamsaquibdev
Which List implementation is faster for 100,000 operations in Java? Benchmarks: 1. ArrayList get(index): 0.001 ms 2. LinkedList get(index): 85 ms 3. ArrayList add(end): 0.5 ms 4. LinkedList add(end): 0.6 ms 5. ArrayList add(middle): 45 ms 6. LinkedList add(middle): 42 ms ArrayList dominates for random access. LinkedList barely wins for middle insertions. ArrayList uses contiguous memory with O(1) indexed access. LinkedList requires traversing nodes for O(n) access. Default to ArrayList unless you're doing frequent insertions at specific positions.
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All warnings and errors in cake cakecc.org/warnings.html
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Thiago Adams @[email protected] retweetledi
I finally figured out a non-programmer way to explain "const volatile" in C++
It's like that crazy-but-hot girl you dated at 19:
Totally unpredictable and you can't change them!
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@fermatslibrary It is interesting to see Latin words written by a german in 1675. Like “continuando“
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The integral symbol ∫ introduced in 1675 was based on the ſ (long S) character, and was chosen because Leibniz thought of it as an ∞ sum
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Thiago Adams @[email protected] retweetledi
It is nonsense to suggest you can’t write any app, of any complexity, in C. I do find a light level of C++ beneficial for many larger projects, but it can also go tragically wrong.
Sometimes, specific language features can be transformative valuable, but not nearly as often as language advocates think, and there is value in writing to an “elder language”.
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Thiago Adams @[email protected] retweetledi
Believe it or not, even Windows 95 was largely just pure C... Not C++.
It had COM objects and vtables and polymorphism, but it was all manually constructed in C. It was impressive in a masochistic kind of way.
When I wrote Task Manager, I used C++ but didn't link to the CRTs. That gave me the language features with none of the bloat, which is why it was 80K.
Bingoo@Xin_an
@davepl1968 C++ if we are being intellectually honest. No love my man Bjourne?
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@fermatslibrary The sentence is wrong because people born after 1969 are alive and not in this picture .
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Michael Collins, the astronaut who took this photo in 1969, is the only human, alive or dead, not captured in the frame of this picture.
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@yacineMTB I think this is also the best way to develop a chat service - thinking about the UI as if someone is pressing the buttons for you. But the buttons must be there then we ensure consistency ;like having to fix previous inputs and no dead ends.
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It will be illegal to access twitter using VPN
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@CarissaVeliz The solution I see for privacy is digital certificates signed by the users allowing companies to use specified data for a specified amount of time.
Companies using user information without or expired certificates would be infringing the law.
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It's fine to pay for a product - e.g., a movie or a newspaper - but not for your privacy. Privacy losses have group consequences, consequences for democracy. Contextual ads should be the norm. #privacy #surveillance #AIEthics
bbc.co.uk/news/articles/…
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