Inlining functions - Rust for C-Programmers

8.11 Inlining Functions

Inlining is an optimization where the compiler replaces a function call with the function's body to eliminate the overhead of the call.

In Rust: The compiler can automatically inline functions during optimization passes.
Attributes: You can suggest inlining using attributes, but the compiler makes the final decision.

8.11.1 Using the `#[inline]` Attribute

#![allow(unused)]
fn main() {
#[inline]
fn add(a: i32, b: i32) -> i32 {
    a + b
}
}

#[inline]: Hints to the compiler that it should consider inlining the function.
#[inline(always)]: A stronger hint to always inline the function.
Note: Overusing inlining can lead to code bloat.