@knutaf on cohost

If you write code in C, C++, Objective-C, Swift, Rust (I think?), and probably some other languages, and you don't already regularly use ASAN (Address Sanitizer) and TSAN (Thread Sanitizer), you ~~may be entitled to compensation~~ are probably¹ way more frustrated than necessary. I can't count the number of times I've gone from "this bug is impossible, it reproduces once every 10,000 attempts and makes no sense" to "oh there's the problem" just by clicking a checkbox and recompiling.

or you're working in an unusual environment or have unusual needs

#asan #tsan #AddressSanitizer #ThreadSanitizer #swiftlang #objective c #memory safety #debugging #developer tools

@knutaf4/29/2024, 8:49 PM

That sounds very useful. On Windows, you can turn on AppVerifier for at least some of these checks. Doesn't even require recompiling!

#debugging

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in reply to @Catfish-Man's post:

cassie @porglezomp4/29/2024, 8:51 PM

Indeed available in rust but you hopefully never need it.

in reply to @knutaf's post:

David Smith @Catfish-Man4/29/2024, 9:23 PM

You can also use ASAN on Windows :) AppVerifier appears to be more similar to the "GuardMalloc" checkbox in the screenshot, in that it works by swapping out the OS calls. The neat thing about ASAN is that it works even when you're not calling any functions at all, which makes it a lot more thorough, albeit at the cost of requiring recompilation and some runtime overhead.

@knutaf4/29/2024, 9:30 PM

yooooo, not only is ASAN available on windows, they managed to add it to MSVC: /fsanitize=adress. i'm gonna have to check this out

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