TUSST — the Stroop SigilTUSST
‹ advanced path

Lifetimes

Annotations stop being noise once you read them as a constraint between inputs and outputs. Elision, structs that hold references, 'static, and what a bound really promises.

serves: Rust/C++ systems programming5 lessons · ~3h
progress0/5
Start track

// lessons

  1. 01

    What a Lifetime Actually Says

    Read 'a as a relationship between arguments, not a duration.

  2. 02

    Elision Rules

    Say which signatures need no annotation, and why yours does.

  3. 03

    Multiple Lifetimes

    Annotate a function whose output borrows from only one of two inputs.

  4. 04

    Structs That Hold References

    Build a zero-copy parser view over a buffer you do not own.

  5. 05

    'static: Two Different Meanings

    Distinguish a &'static str from a T: 'static bound — they are not the same claim.

Every exercise compiles and runs in the Forge sandbox — standard library only, no external crates.