🦀 #Rust Tip #103: Want to spawn threads without managing handles? std::thread::scope blocks until all threads terminate within the defined closure. Example:

🦀 #Rust Tip #104: This is a nice one: Have you ever tried to compare the variant of two enums? Usually this requires a cascade of match statements. However, mem::discriminant can be used in this situation. This works specifically in cases where the enum doesn't derive Eq.

Lol 😆

🦀 #Rust Tip #105: Searching for ways to allow a warning I learned that there are "inner" and "outer" attributes. - Inner #![...] applies broadly to the whole module or crate: #![allow(dead_code)] - Outer #[...] applies to the following item: #[derive(Debug)]

🦀 #Rust #Crate 22: Are you dissatisfied with the performance hit of your println! debugging output? Do you think env_logger is boring? Turbocharge your log outputs with high performance and fine-grained structured control using the tracing crate: crates.io/crates/tracing

A bit "schoolmasterly" but some good tips on learning Rust corrode.dev/blog/flattenin…

🦀 #Rust Tip #105: Want to make sure your loop breaks out to a specific level? Rust allows using labels to finetune the exit point:

This looks like there is finally a (usable) #debugger for #Rust . Worth checking out? firedbg.sea-ql.org

🦀 #Rust Tip #106: Boxing large enum values can be beneficial to save stack space and to prevent recursion-bombs 💣, by moving these payloads to the heap.

when you write a rust app, no tests, and it works first try

🦀 #Rust Tip #107: TIL about the #[cold] attribute for functions that don't get called very often. This helps the compiler prioritize hot path functions for better instruction cache performance. #[cold] can also be used to tag enum variants to optimize memory layout.

🦀 #Rust Tip #108: I always enjoy the power of Rust #iterators. Here are two utility functions that you might not know about: .peekable() : Allow peeking at next element without consuming it .partition(cond_fn): Partition an iterator into separate collections with a condition

If they had just used #Rust ... No null pointers!

🦀 #Rust Tip #110: Rust 2024 edition allows if let Some() chaining. Finally!

🦀 #Rust Tip #111: You can use the examples/ directory in your crate and cargo run --example <name> to run quick experimentations, demos or tests without affecting your main.rs file.

🦀 #Rust Tip #112: Rust will happily compile and call C functions in unsafe mode. Just declare them in an extern "C" block. Great for interop with legacy code or standard library C functions.

🦀 #Rust Tip #113: build.rs is secretly a decent C build system. You can compile wrappers + link C SDKs for Rust wrappers and calling into C code. BTW those println!s are "hidden" build instructions to Cargo. Who needs Makefiles? 🦀