Beginning Rust: Get Started with Rust 2021 Edition

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2022

C. MilanesiBeginning Rusthttps://doi.org/10.1007/978-1-4842-7208-4_24

24. More About Lifetimes

Carlo Milanesi¹  

(1)

Bergamo, Italy

 

In this chapter, you will learn:

• How to avoid having to write lifetime specifiers for some kinds of free functions and methods, because such specifiers can be inferred

• Why lifetime specifiers are also needed for structs, tuple-structs, and enums containing references

• How to write lifetime specifiers for structs, tuple-structs, and enums

Lifetime Elision

In the previous chapter we saw that every function signature must specify, for each returned reference, whether that reference has a static lifetime or otherwise to which function arguments ...