Creating a Library

Let's create a library, and then see how to link it to another crate.

In rary.rs:

pub fn public_function() { println!("called rary's `public_function()`"); } fn private_function() { println!("called rary's `private_function()`"); } pub fn indirect_access() { print!("called rary's `indirect_access()`, that\n> "); private_function(); }
$ rustc --crate-type=lib rary.rs $ ls lib* library.rlib

Libraries get prefixed with "lib", and by default they get named after their crate file, but this default name can be overridden by passing the --crate-name option to rustc or by using the crate_name attribute.