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1ris

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European natural gas imports and storage reserves

bruegel.org
113 points·by 1ris·4 ปีที่แล้ว·290 comments

comments

1ris
·3 ปีที่แล้ว·discuss
>C has been adding generics anyway, like _Generic.

"_Generic" added function overloads to c, not generics. The naming is exceptionally poor.

The submission is an example of generic programming. It an implementatin of something that works on all types that fullfill certain constrains. In this case comparable and swapable. "All types" include user defined types.

"_Generic" does something completely different. The C++ equvivalent would be std::conditional_v<std::is_same<T, int>, myIntFunc, std::conditional<std::is_same<T, double>, myDoubleFunc ............ The exact opposite of a generic, I'd argue, as myIntFunc and myDoubleFunc do depend on the type. You might use the preprocessor to create these functions that differ only in type, but then again, you might do what OP did.
1ris
·3 ปีที่แล้ว·discuss
No, The strict aliasing part of the semantic of the memory. “syntax sugar” is, per definition, part of the syntax.
1ris
·3 ปีที่แล้ว·discuss
for a definiton of "just memory" that includes the strict aliasing rule. Certainly not a buffer of bytes, what most people would assume when they hear "just memory".
1ris
·3 ปีที่แล้ว·discuss
Sorry my bad. Yes, it works for proper function arguments. Does this work for variadic arguments? Parent seems to suggest, but i'm not aware of any mechanism for this.
1ris
·3 ปีที่แล้ว·discuss
>Did you propose/implement/release something better than printf?

This is what the article is about? Things much better that printf are a dime a dozed and available since 20 years.

>Some people talk about getting work done,

Like this article does? While you busy arguing that you could do the same thing, but much worse?
1ris
·3 ปีที่แล้ว·discuss
Do you mean this feature [0]? I'm not aware of any differences in c and c++ about this. Can you get a type of a argument in C? How? At compile time, or at runtime? Both sound very un-C-like to me. cppreference is usually excellent documentation but it doesn't mention something like this.

I don't considers this to be "proper" variadic arguments, because a functions argument has to have a type. and these, as far as I'm aware of don't have one. This is about a powerfull as passing a void**. This is essentially memcopying multiple differently typed into a char* buffer and then passing that buffer. You can than correctly copies them back you have pretty much the same behaviour. Both methodss obviously lacks important aspects of the language abstraction of a function parameter and i don't what that feature can bring to the table that the previous techniques don't.

[0] https://en.cppreference.com/w/cpp/utility/variadic
1ris
·3 ปีที่แล้ว·discuss
And outstreams where not that bad, aswell. Sure, the operator overloading looks a bit rough. But that's IMHO a pragmatic choice if you want to offer customisation points and didn't have variadic functions yet. They where introduced only in c++11.
1ris
·3 ปีที่แล้ว·discuss
printf is a bad joke of a formatting function.

When i want to print a string i don't want to worry about the security implications of that. With printf i have to. [0]

And i certainly don't want a turing complete contraption. [1] Also looking at log4j.

And even if everything is correct, it's has to parse a string at runtime. I consider that alone unaesthetic.

>Edit: It's almost like the whole world got a lot of work done with the tools they already had.

The best metaphor i know for this attitude is "stacking chairs to reach to moon". If you don't care about the limits of the tech you will be stuck within it.

I'm time and time again amused how anti intellectual and outright hostile to technological progress the programming profession is. programmers, out of all of them.

[0] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=printf

[1] https://news.ycombinator.com/item?id=25691598
1ris
·3 ปีที่แล้ว·discuss
I think you are looking for (one specific implementation of) Cold district heating.

It can be implemented as a single line of force water flow with 20-25 Celsius. It is viable as both a heat source and a heat sink at the same time.

This thing can be connected to both your coolers and heaters, and thus transfere heat from one to another. Maybe you could even get you desktop computer into the loop.

Usually it implemented on a lager scale, but i don't see why this would work scaled down.
1ris
·4 ปีที่แล้ว·discuss
Both can be bad, and both are bad.

But it looks like a lot of people assume they are just as bad without any quantitate or qualitative assessment.

Lithium mining is way less bad than oil extraction in both dimensions. If that lithium can offset oil consumption it looks particular good.
1ris
·4 ปีที่แล้ว·discuss
>It does not misrepresent what you said, and failure to see that means you did not actually understand it

Oh yes, I do. I do know what i mean and I can see that your quote of it was either extremely unintelligent, something you can by definition not see, or intentionally miss representing and therefore bad faith and therefore something you by definition lie about.

I'm heavily leaning to bad faith, because you never make any attempts to refute arguments anywhere in the whole thread.

So, of course, I'm obviously correct on on this one, so it's good thing either of us wasted any time talking on the substance.
1ris
·4 ปีที่แล้ว·discuss
Yes, precisely my point: Even the best are not nearly good enough. Because "the competent enough C programmer" is a myth.
1ris
·4 ปีที่แล้ว·discuss
Seatbelts have issues. Some of them undiscovered yet. What suggests that Seatbelts won't introduce issues that will be larger than the 70% of issues that it solves with crashes? Because to me, it just sounds like we can't know so we're being hopeful that we don't run into that situation.
1ris
·4 ปีที่แล้ว·discuss
I understand your argument. It works with starting from a massive misrepresentation of what I have said (aka bad faith). Your argument is fatally flawed due to the reason i stated. And that's why there is nothing to be said to the substance, other than what was written and this discussion was and remains over.
1ris
·4 ปีที่แล้ว·discuss
The non-cynical answer is: Yes, we will be doing so much more.

https://blog.ploeh.dk/2019/07/01/yes-silver-bullet/
1ris
·4 ปีที่แล้ว·discuss
"Training" and "being the (allergy) the most skilled" have no connection to you? You can't be serious.

This is mincing words and a bad-faith argument. I consider this discussion pointless and will not continue.
1ris
·4 ปีที่แล้ว·discuss
Kernel hackers are considered the most skilled people in the whole profession. The Linux kernel is one of the most read source code on the planet. The code is audited to death. Much of the research into static code analysis starts there. They have tools available most other people don't. That's what i mean.

If, what ever the happens there, is not up to your standard of professionalism, maybe your standard is unrealistic?
1ris
·4 ปีที่แล้ว·discuss
To reuse your metaphor:

If professional chefs would constantly maim themself and each other despite extensive occupancy safety training, knives have no place in the hands of a responsible professional.

Using C is the SE equivalent of taping down one button of the two-hand control device of a die cutter.
1ris
·4 ปีที่แล้ว·discuss
"I/My kid/My dog could have done that" is something that is said to artists since the dawn of time.

It's a universal sentiment. I'm not saying it's true. I'm saying it is said.
1ris
·4 ปีที่แล้ว·discuss
What about this is counterproductive? People get angry, emotional involved. After a few minutes they realize that the glass in front of the painting is not that expensive and all is well. Or is it? That's when they have time to think about destruction and maybe what these people just said about climate change.

What picture exactly is of course not important. Any popular picture with a glass plate in front of it could have done the job. I don't they have any ax to grind about Vermeer, nor will the controversy have any connections to him or his art.