News for hackers. Stuff that matters.

daneelsan

Re:Why do arrays start at 0? on Wednesday August 24, 2022 @01:53PM (#32583186)
In Mathematica/Wolfram Languege, the part 0 of an expression is reserved for the head of the expression: f[x, y, z][[0]] == f. Or g[f][x, y][[0, 1]] == f.
Scott's thots part 2
Re:Zig and WASM on Wednesday July 13, 2022 @07:37PM (#32090095)
And just now console.log() :) https://github.com/daneelsan/zig-wasm-logger
Re:Zig and WASM on Wednesday July 13, 2022 @05:03PM (#32088733)
I am also trying to learn wasm via the zig route:

* A minimal example showing how HTML5's canvas, wasm memory and zig can interact: https://github.com/daneelsan/minimal-zig-wasm-canvas

* This mini game shows how Zig, WASM, Javascript and HTML5 canvas can interact: https://github.com/daneelsan/Dodgeballz

* WEFX is a simple graphics drawing package using Zig, WASM, and an HTML canvas: https://github.com/daneelsan/zig-wefx

Re:Music for Programming on Thursday July 07, 2022 @08:48AM (#32013368)
My goto right now is to listen to One Piece OST.
Re:Khan Academy launches Khan World School online high school on Wednesday April 27, 2022 @10:18AM (#31180191)
There is a difference between online education because there is no other way as there is a pandemic (are the students and the institution ready to switch to online, are the courses even designed to be imparted online, etc.), and online education because it's a choice.
Would it be profitable, though?
I'm not sure why comments mention CA. His physics theory and the multicomputation stuff does not make use of CA's (at least no more than any other abstract machine).
Didn't he invent a numbering schema for classifying CA? That should count as an achievement.
> it's nothing more than noodling cellular automata in ways that have had no effect whatsoever on chemistry, physics, or biology.

I mean, you could at least read a bit about what his Multicomputation stuff is really studying. CA are not being noodled there.

Re:Stephen Wolfram: A New Kind of Science on Monday February 07, 2022 @04:41PM (#30251684)
Simple rules do not necessarily mean simple behavior. Explore where observation leads in various different systems and rules.
Interesting...
I see what you mean, simpler indeed!
It has GC, e.g. DataStructures (https://reference.wolfram.com/language/guide/DataStructures....) are GC'd. IIRC it uses refcounting for this.
Tom is the current main developer of the new Wolfram Compiler. Search in YouTube "wolfram compiler" and you'll see almost all the talks are his.
Re:A simple defer feature for C on Monday January 17, 2022 @08:17AM (#29966221)
Yeah, I do want some kind of defer.
Re:A simple defer feature for C on Sunday January 16, 2022 @04:57PM (#29960624)
Some say they don't like it because it it's implicit control flow, i.e. I don't like that my code is being put into the end of the function without it being in the end of the function. I mean OK, but that's what for loops so right? The i++ is put at the end of the "while" loop, together with the exit condition. I think the more important problems are: 1) why be function scoped and not block scoped? 2)why should it be so tied up with lambdas?

1) I don't se why they chose function over scoped so please enlighten me 2) the proposal said there were debates whether defer free(ptr) refers to the ptr where the defer first appears, or to the current ptr that appears when the defer block is being executed. As someone mentioned, gotos already work in the latter way. Same goes with i++ in a for loop, I could do whatever I wanted with the i inside the for, and the i++ or the exit condition would use the latest value of i, not the value at the start of the block.

Re:A simple defer feature for C on Sunday January 16, 2022 @04:40PM (#29960424)
Huh that's a good point.
Re:A simple defer feature for C on Sunday January 16, 2022 @03:04PM (#29959413)
Why ado you think namespaces make it a no brainer? I would argue the only thing I would want from C++ it's operator overloading, and I'm not even conviced about that.
Re:PiDP-11 – Recreating PDP-11/70 with Raspberry Pi on Monday April 19, 2021 @09:13PM (#26869707)
That sounds really interesting!
Re:How to implement a hash table in C on Friday March 26, 2021 @01:15PM (#26594551)
That seems like the thing I'm looking for! Thanks for the info
Re:How to implement a hash table in C on Friday March 26, 2021 @12:51PM (#26594265)
I guess that can be solved by creating an Expression type
Re:How to implement a hash table in C on Friday March 26, 2021 @12:50PM (#26594246)
Yes. At some point i encountered this trie with payloads (which would act as t he field values).
Re:How to implement a hash table in C on Friday March 26, 2021 @12:37PM (#26594101)
Sorry if I wasn't clear enough. Yes I want something like an object in javascript, like a struct in C but at runtime. But I want to implement this myself. At first I thought a hash table was the right choice. But I don't need the insert delete increase capacity that this data structure typically needs to implement. I want to implement this in Mathematica. The language doesn't have native objects given that the main idea is for things to be immutable. But I still can program data structures, so I'm looking for one...

Older »