Notices by Stephen Brooks 🦆 (sjb@mstdn.io)

@Junes @splitshockvirus

@tedu If these people want to unroll so bad, why are they browsing Twitter and not, say, Medium, the home of walls of text

First view of the Sun's south pole filmed by spacecraft. #space #astronomy
https://www.bbc.com/news/articles/clyqry9ppl9o

@eric @splitshockvirus I don't know for sure you are real, or I could be an AI bot, it's all just shadows on a cave wall.

@splitshockvirus $1,111,111 millionaire.

I understand now.

1 inch aperture Halbach dipole #magnet made of off-the-shelf permanent magnet cuboids and a 3D printed holder. This has a central field of 0.34 Tesla, would be 0.5 Tesla with more longitudinal slices. #physics #accelerators

#ESP32 backdoor. #security
https://www.bleepingcomputer.com/news/security/undocumented-backdoor-found-in-bluetooth-chip-used-by-a-billion-devices/

@splitshockvirus Add livestreaming to Starnix so we can watch you play truck simulation for 18 hours.

Scientists aiming to bring back woolly mammoth create woolly mice.
https://www.theguardian.com/science/2025/mar/04/genetically-modified-woolly-mice-mammoth

Europe spending a bit more on defence could go a long way given their population and GDP are larger than Russia:
https://fredblog.stlouisfed.org/2022/03/comparing-russia-and-the-european-union-gdp-and-population/

Europa Clipper flew by Mars for gravity assist today. #space #NASA
RT https://x.com/EuropaClipper/status/1895896076496089505

@splitshockvirus

@tedu @wolf480pl Never mind I thought it was this, in which optimisation might avoid a segfault completely:

int bar(struct foo *p) {
int py = p->y;
if (!p) {
return 0;
}
return py;
}

@tedu @wolf480pl My guess would be segfault, unless you optimise, in which case it'll put the calculation of py after the "if (!p)" thing and it'll work fine.

@wolf480pl @tedu I dunno about that. On older systems like DOS, *(int *)0 was valid and just read low memory.

@wolf480pl @tedu I don't think so. In fact I think I read an article saying NULL could be non-zero in certain implementations of <stdlib.h>! So properly you should do "if (p==NULL)" not "if (!p)".

@wolf480pl @tedu In the original C, NULL was just macro in <stdlib.h>, nothing more. C++ has "nullptr" which I believe comes with extra semantics.

For British citizens - you can sign this petition asking to stop companies disabling video games people have already bought.
#UK #gaming
https://petition.parliament.uk/petitions/702074/

@Inginsub 🔫🐵