Types

Casting

RUST PROVIDES NO IMPLICIT TYPE CONVERSION, but you can explicitly type cast using the as keyword

All type casts between integral types are well defined in Rust (some are C conventions, some are custom where C would have been undefined behaviour)

let decimal = 65.4f32;
let integer = decimal as i32;
let character = integer as char;

Literals

Suffixing with the type as seen in Primitives

Inference

Pretty smart,can infer type from a variable’s future usage. See Primitives

Aliasing

use type keyword to give a new name to an existing type. They must be camel case.

type Inch = u64;
type U64 = u64;
 
fn main() {
	// Inch = U64 = u64
	let inches : Inch = 2 as U64;
}