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Rust (programming language): Difference between revisions
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==Syntax== | |||
===Example=== | |||
<syntaxhighlight lang="rust"> | |||
# Const variable, must have type annotation. | |||
const IMPORTANT_VALUE: i32 = 50; | |||
fn main() { | |||
# C++: int x = 3; | |||
let mut x: i32 = 3; | |||
# Shadowing, creating a new variable. | |||
let x = x + 5; | |||
# Loop over values [0, 1, 2] | |||
for i in 0..3 { | |||
println!("This number is {}", i); | |||
} | |||
# Ternary is a single line if statement. | |||
let big_x = if x > 5 {x} else {5}; | |||
} | |||
fn lerp(a: f64, b: f64, x: f64) -> f64 { | |||
# No semicolon implies return. | |||
(1.0 - x) * a + x * b | |||
} | |||
# Copied from rustlings. | |||
pub fn fizz_if_foo(fizzish: &str) -> &str { | |||
if fizzish == "fizz" { | |||
"foo" | |||
} else if fizzish == "fuzz" { | |||
"bar" | |||
} else { | |||
"baz" | |||
} | |||
} | |||
</syntaxhighlight> | |||
==Resources== | ==Resources== | ||
* [https://github.com/rust-lang/rustlings/ Rustlings] - some rust exercises. | * [https://github.com/rust-lang/rustlings/ Rustlings] - some rust exercises. | ||
* [https://doc.rust-lang.org/book/print.html The Rust Programming Language] | |||
* [https://doc.rust-lang.org/stable/rust-by-example/index.html Rust by example book] | |||