vecless

vecless is a minimal, ergonomic, singly linked list implementation in Rust — no Vec required.

✨ Features

• ✅ No Vec or heap-allocated arrays
• ✅ Supports .add(...) with any iterable
• ✅ Implements Display for clean, human-readable output
• ✅ Iterator support for for loops and .iter()

🚀 Example

use vecless::List;

fn main() {
    let list = List::new().add(["a", "b", "c"]);
    println!("{}", list); // Output: [a, b, c]
}

Why Vecless?

Rust’s built-in Vec<T> is powerful and flexible — but it doesn’t implement the Display trait, which means you can’t print it with {}. Instead, you have to use the debug formatter {:?}:

let v = vec![1, 2, 3];
println!("{:?}", v); // [1, 2, 3]

vecless was created to:

• Provide a list type that implements Display out of the box
• Offer a lightweight, composable alternative to Vec for learning and experimentation
• Help developers understand how linked lists work under the hood in Rust
• Serve as a teaching tool or a minimal data structure for constrained environments

While not a replacement for Vec in performance-critical code, vecless is great for:

• Educational projects
• Functional-style list building
• CLI tools or embedded contexts where simplicity matters

Want to contribute or suggest improvements? Open an issue or start a discussion!