README.md

Goto/Label for Rust

Tired of using newfangled control flow mechnisms like "loop," "while," and "for"?

Well worry no more! Finally, "goto" and "label" macros have arrived for Rust! And they're #![no_std]!

use goto_label::{goto, label};

#[no_mangle] // Needed to prevent foo() from being optimized away
unsafe fn foo() {
    println!("This text will never be printed!");

    label!("label1");
    print!("Hello");
    goto!("label2");

    println!("Neither will this be printed!");
}

unsafe fn hello_world() {
    goto!("label1");
    println!("This won't be printed either!");

    label!("label2");
    println!(" World!");
}

unsafe {
    hello_world();
}

Currently supported Architectures

• x86
• x86_64
• aarch64

Warning

Do not actually use this crate. It will definitely cause undefined behavior, most likely manifesting as segfaults.

See also

Another goto implementation