Numbers

November 14, 2022

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Signed integer types are i8 (8-bit), i16 (16-bit), i32 (32-bit), i64 (64-bit), and i128 (128-bit). The default integer type is i32. Numbers represented by signed integers can have a positive or negative value.

// Examples of signed integers
let a: i8 = -23;
let b: i32 = -41;
let c: i64 = -52;

Unsigned integer types are u8 (8-bit), u16 (16-bit), u32 (32-bit), u64 (64-bit), and u128 (128-bit). Numbers represented as unsigned integers must have a positive value.

// Examples of unsigned integers
let a: u8 = 58;
let b: u32 = 81;
let c: u64 = 95;

Floating point number types are f32 (single precision) and f64 (double precision). The default float type is f64.

// Examples of floating point numbers
let a: f32 = 12.809;
let b = 34.1;

Use an underscore to visually separate a number.

let c = 9_800.25;