Data Types

Ferret currently ships these core primitive types:

• integers: i8, i16, i32, i64, isize, u8, u16, u32, u64, usize
• floats: f32, f64
• text/scalar: str, char, bool, void

Numeric Types

let small: i32 = 10
let large: i64 = 5000000000
let ratio: f32 = 0.5
let precise: f64 = 3.1415926535

Text Types

let message: str = "hello"
let letter: char = 'h'
let first = (message as []u8)[0]

str is immutable text. Convert to []u8 / []char for element-level access.

Composite Types

let fixed: [3]i32 = [3]i32{1, 2, 3}
let items: []i32 = []i32{1, 2, 3}
let pair: (i32, bool) = (7, true)
let maybe: ?i32 = none

Ownership Forms

• T plain value
• *T owning pointer
• &T / &mut T borrowed references
• ^T / ^const T raw pointers

Next

• Operators
• Structs