Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "The seeds are for XorShiftRng, move to previous line max_in_memory_bytes and max_disk_bytes are for hopper."

A block of code is set as follows:

fn main() {
    println!("Apollo is the name of a space program but also my dog.");
}

Any command-line input or output is written as follows:

> cat hello.rs
fn main() {
 println!("Apollo is the name of a space program but also my dog.");
}
> rustc -C opt-level=2 hello.rs
> ./hello
Apollo is the name of a space program but also my dog.

Bold: Indicates a new term, an important word, or words that you see onscreen. 

Warnings or important notes appear like this.

Tips and tricks appear like this.