ridiculous_fish

8 ms·

61.
by ridiculous_fish 3y ago
See my peer comment: Apple Mail really does download external images automatically, on a server to hide your IP address. It then rewrites those emails to reference the cached images from the server. Every tracker pixel sent to a mail accoun
62.
by ridiculous_fish 3y ago
Right, especially with Apple. Apple's Protect Mail Activity feature, which is on by default, "opens" all emails received on a server, to hide the user's IP address. This causes emails with tracker pixels to be falsely re
63.
by ridiculous_fish 3y ago
VPTERNLOGD is a mouthful but is fun to think about. Notice there are 4 functions mapping 1 bit -> 1 bit: const 0, const 1, copy, invert. There are 16 functions mapping 2 bits -> 1 bit. Think 4 possible inputs, 2 possible output values
64.
by ridiculous_fish 3y ago
Rust does have manually-written error handling paths like that. See for example the panic handling in Vec.retain_mut: https://doc.rust-lang.org/src/alloc/vec/mod.rs.html#1577 I doubt most crates handle these
65.
by ridiculous_fish 3y ago
The problem being tackled here is link time in debug builds. This affects all platforms.
66.
by ridiculous_fish 3y ago
How would one implement locale-aware strtod() all by yourself from scratch?
67.
by ridiculous_fish 3y ago
And before that was the 68k -> PPC transition, which was even smoother: 68k and PPC code could co-exist and call each other in the same address space . (Well there was no memory protection in those days, so everything was in one address
68.
by ridiculous_fish 3y ago
Objective-C++ is underrated.
69.
by ridiculous_fish 3y ago
I'm not sure that a failing constructor is UB under -fno-execptions. The libstdc++ manual suggests that these will instead abort: https://gcc.gnu.org/onlinedocs/libstdc++/manual/using_except...
70.
by ridiculous_fish 3y ago
I have put a bug report where my mouth is. https://github.com/rust-lang/rust/issues/111272
71.
by ridiculous_fish 3y ago
My understanding is that the code which aborts the process contains the potential for UB.
72.
by ridiculous_fish 3y ago
Stack overflow in Rust does abort the process, but not immediately: the signal handler first distinguishes stack overflow from other sources of SIGSEGV/SIGBUS, and then prints a message containing the name of the current thread. Both o
73.
by ridiculous_fish 3y ago
My understanding is that there is a decent amount of undefined behavior on stack overflow in Rust, due to its use of TLS. https://github.com/rust-lang/rust/issues/43146
74.
by ridiculous_fish 3y ago
I think the "someone" was Dennis Montgomery, and he conned Lindell. Montgomery was the source of the data (see RG's thread). Montgomery has a history of cons. During the war on terror, Montgomery claimed he had software that
75.
by ridiculous_fish 4y ago
https://news.ycombinator.com/item?id=35642772
76.
by ridiculous_fish 4y ago
Robert Graham attended Lindell's Cyber Symposium; his Twitter thread is worth a read. https://threadreaderapp.com/thread/1424878450867847181.html An amusing anecdote is that they shared rich text files as hexdumps
77.
by ridiculous_fish 4y ago
Thanks! I hadn't encountered that top paper "A closer look at TDFA." That paper claims to be "the first practical submatch extraction and parsing algorithm based on DFA" and it came out only last year! It shows ho
78.
by ridiculous_fish 4y ago
Often you want to capture something, not just check if a match exists. But the theory of capture groups in DFAs is relatively obscure - for example tagged DFAs in the Laurikari paper, which is a difficult read. Does anyone know of an access
79.
by ridiculous_fish 4y ago
The nuclear industry, in which I work, has a large set of software components for modeling reactors. Engineers who work on these components make nuclear reactors faster to design, simulate them with more accuracy, etc. https://mo
80.
by ridiculous_fish 4y ago
> How these commands change if I want to build the project with sanitizers? What do you mean the sanitizers are not supported by the build process? Why the build script suddenly started printing linker errors? Doesn't Rust require y
81.
by ridiculous_fish 4y ago
The "fault" lies with any function which fails to uphold its contract. I would argue that if `foo1` were documented as async-signal safe, then it would be at fault for the memory corruption it causes, if called from a signal handl
82.
by ridiculous_fish 4y ago
The author gives the following function: static BYTES: &[u8] = b"hello world"; fn foo1(index: usize) -> u8 { BYTES[index] } and then writes we can't make foo1 commit UB just by giving it a la
83.
by ridiculous_fish 4y ago
> Instead, the only way I can think of to make foo1 commit UB is to give it an uninitialized index Nah a `fclose(stderr)` before calling it will do it! > A safe caller can't be "at fault" for memory corruption or other
84.
by ridiculous_fish 4y ago
This is wonderful! Thank you for writing this.
85.
by ridiculous_fish 4y ago
On macOS, I use SensibleSideButtons to map my Logitech mouse side buttons to Swipe Right and Swipe Left. This works as a generic Forwards/Back in lots of places: Safari, Firefox, Finder, iTerm2. Unfortunately the app appears to be aban
86.
by ridiculous_fish 4y ago
Are there any guides or examples of chat rooms for open source projects using Matrix? We would like GitHub integration, strong spam/moderation features, and avoid the hassle of self-hosting. gitter.im used to provide those, but they we
87.
by ridiculous_fish 4y ago
Back when desks were sold out everywhere ("remote learning"), I built a small desk for a family member using piping and a workbench. Total cost was maybe $65 at Home Depot. I'm not very handy, but this was easy and satisfying
88.
by ridiculous_fish 4y ago
But it hasn't resulted in "more users." The marketshare of Firefox on mobile is around half a percent.
89.
by ridiculous_fish 4y ago
All native GUI toolkits from the last three decades allow you to reflow elements in the way you describe. Both CSS and native toolkits make it simple to express how elements move and stretch in response to window resizing. Where CSS falls d
90.
by ridiculous_fish 4y ago
Why hasn't this happened on Android?

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