Rust is an open source programming language created in 2010 by Graydon Hoare.
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Rust is a systems programming language sponsored by Mozilla Research, which describes it as a "safe, concurrent, practical language," supporting functional and imperative-procedural paradigms. Rust is syntactically similar to C++, but its designers intend it to provide better memory safety while maintaining performance. Rust is an open source programming language. Read more on Wikipedia...
// Type your code here, or load an example.
pub fn square(num: i32) -> i32 {
num * num
}
// If you use `main()`, declare it as `pub` to see it in the output:
// pub fn main() { ... }
fn main() {
println!("Hello, world!");
}
fn main() {
println!("Hello World");
}
// Hello world in Rust
fn main() {
println!("Hello World!");
}extern crate foo;
extern crate bar;
use foo::{self, quix};
use bar::car::*;
use bar;
fn main() {
println!("Hello {}", "World");
panic!("Goodbye")
}
abstract alignof as become box break const continue crate do else enum extern false final fn for if impl in let loop macro match mod move mut offsetof override priv proc pub pure ref return Self self sizeof static struct super trait true type typeof unsafe unsized use virtual where while yield| Feature | Supported | Token | Example |
|---|---|---|---|
| Conditionals | ✓ | ||
| Constants | ✓ | ||
| While Loops | ✓ | ||
| Booleans | ✓ | true false | |
| Line Comments | ✓ | // | // A comment |
| Type Inference | ✓ | ||
| Print() Debugging | ✓ | println! | println!("Hi"); |
| Pattern Matching | ✓ | ||
| Operator Overloading | ✓ | ||
| Macros | ✓ | // https://doc.rust-lang.org/book/ch19-06-macros.html
#[macro_export]
macro_rules! vec {
( $( $x:expr ),* ) => {
{
let mut temp_vec = Vec::new();
$(
temp_vec.push($x);
)*
temp_vec
}
};
} |
|
| Iterators | ✓ | for n in 0..42 {
println!("{}", n);
} |
|
| File Imports | ✓ | use ::std::fs; // Imports from the `std` crate, not the module below. use self::std::fs as self_fs; // Imports the module below. mod my; use self::foo::Zoo as _; #[path = "foo.rs"] mod c; |
|
| Directives | ✓ | // A conditionally-compiled module
#[cfg(target_os = "linux")]
mod bar {
/* ... */
}
// General metadata applied to the enclosing module or crate.
#![crate_type = "lib"]
// A function marked as a unit test
#[test]
fn test_foo() {
/* ... */
}
// A lint attribute used to suppress a warning/error
#[allow(non_camel_case_types)]
type int8_t = i8;
// Inner attribute applies to the entire function.
fn some_unused_variables() {
#![allow(unused_variables)]
let x = ();
let y = ();
let z = ();
} |
|
| MultiLine Comments | ✓ | /* */ | /* A comment */ |
| Comments | ✓ | // https://doc.rust-lang.org/reference/comments.html // a comment |
|
| Strings | ✓ | " | "hello world" |
| Case Insensitive Identifiers | X | ||
| Semantic Indentation | X |