calcopiritus

joined 1 year ago
[–] calcopiritus 65 points 22 hours ago (2 children)

This triangle is impossible.

If the distance between B and C is 0, B and C are the same points. If that is the case, the distances between A and B and A and C must be the same.

However, i ≠ 1.

If you want it to be real (hehe) the triangle should be like this:

    C
    | \
|i| |  \ 0
    |   \
    A---B
     |1|

Drawing that on mobile was a pain.

As the other guy said, you cannot have imaginary distances.

Also, you can only use Pythagoras with triangles that have a 90° angle. Nothing in the meme says that there's a 90° angle. As I see it, there are only 0° and 180° angles.

Goodbye, I have to attend other memes to ruin.

[–] calcopiritus 3 points 22 hours ago

Doesn't speed/acceleration affect it? If that is the case, that's another pro for bikes.

[–] calcopiritus 1 points 22 hours ago

Nowadays reliability and coverage is actually the selling point.

They may all have enough speed, but usually the expensive ISPs are more reliable. Mostly because the "cheap ISP"s are just the expensive ones in a trenchcoat selling excess bandwidth. But when the excess bandwidth is no longer excess, the cheap ones are the first to be cut off.

So if you don't need 99.99...% uptime, the cheap ones are much better.

[–] calcopiritus 58 points 1 day ago (10 children)

I'd bet if you were a lego fan you'd say the same about legos.

Housing and concerts are orders of magnitude apart in "importantness". All of the items above are not needed to live. A home is needed.

[–] calcopiritus 7 points 1 week ago (2 children)

This user was not using git though, he was using vs code. That button doesn't say "git reset" it says "discard all changes". And btw, what it does is "git clean", which is something that git can do.

Just below the button there is a list of all the changes. In his case, there were 3000 changes of the type "file creation". Discarding a file creation can only be made one way: deleting the file.

Anyway, this user is presumably in his learning phase, I would not assume that he knows what git reset or git restore actually do.

[–] calcopiritus 6 points 1 week ago

There is a warning. IIRC it says "are you sure you want to discard all changes? This action is unreverisble". In the context of version management. Creating a file is a change. And just below the button to discard all changes is the list of changes. In that list he could've seen 3000 changes of the type "file creation", when you discard a file creation, it means to undo the creation, which is a deletion.

The button days what is going to do. There is a warning about what it's going to do. And there is a list of the exact changes it's going to undo.

The only way to avoid this from happening is to not have the button exist. In that case, the users that actually want to discard all changes would be unable to do so.

[–] calcopiritus 6 points 1 week ago

Of course it would output JavaScript. What else?

[–] calcopiritus 19 points 1 week ago (10 children)

I don't even know why people ITT are blaming the IDE and completely ignoring this.

When you learn git, you do so on a dummy project, that has 5 files which are 10 characters long each.

An IDE is not made so you can't break things, it is tool, and it should let you do things. It's like complaining that Linux will let you delete your desktop environment. Some people actually want to delete your desktop environment. You can't remove that option just because someone can accidentally do it by ignoring all the warnings.

[–] calcopiritus 14 points 1 week ago (2 children)

And unfortunately, this means that WG21, the C++ committee, has to take action because people are demanding it

Why does this mean that they have to take action? Why do they need to make C++ memory safe?

C++ was not designed to be memory safe. If you try to make C++ memory safe, you'll have to break retro compatibility. If you're going to break retro compatibility, can you say it's still C++? Or another language called C++2? At that point, why not just use another language that was designed from the start to be memory safe?

The action that should be taken is to completely avoid starting any new project in C++, and let the language die. A programming language is nothing more than a tool, once the tool no longer works, you search for another that does.

C++ should go the way of fortran and cobol. The only development of C++ should be done is to maintain existing huge codebases that would be too expensive to rewrite.

[–] calcopiritus 3 points 1 week ago (1 children)

I have had many mouses. Most of them broke the side buttons. The scroll wheel usually lasts as much as the side buttons. After that. The left/right main buttons fail.

I have never had a mouse with a broken sensor though. I would look for solutions in the software (calibration and settings). But it's not impossible that it's broken.

[–] calcopiritus 5 points 1 week ago

If governments cut down less forests (or even plant new ones!) it's not cheating. That should be the goal.

To fix global warming we have to do both. Stop using fossil fuels and get out more CO2 from the atmosphere.

[–] calcopiritus 1 points 2 weeks ago (1 children)

They could use fixed point numbers instead of floating point ones. Fixed point is exact

 

I want to do basically this:

struct MyStruct < T> {
    data: T
}

impl < T> for MyStruct < T> {
    fn foo() {
        println!("Generic")
    }
}

impl for MyStruct < u32> {
    fn foo() {
        println!("u32")
    }
}

I have tried doing

impl < T: !u32> for MyStruct < T> {
    ...
}

But it doesn't seem to work. I've also tried various things with traits but none of them seem to work. Is this even possible?

EDIT: Fixed formatting

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