Rust datatypes

Literals

'a'        // char
"abc"      // string
1234       // i32
3.14       // f32
true/false // bool

1_000      // == 1000
1.000_000  // == 1.000000

Primitives

Text

string

"abcd"  // string

char

char
'a'    // character (single)

Numbers

implied type	let var = 12;
assigned type	let var: i8 = 12;
type suffix	let var = 12i8;

Integers

• signed integers range is split in two, can be positive/negative
• unsigned integers are positive, and use all available bits
• use radix to calculate max size that can be accomodated with b bits $2^{b}$

// signed integers, by bit-size
i8   //        -128..127
i16  //      -32768..32767
i32  // -2147483648..2147483647
i64  // ...
i128
isize

// unsigned integers, by bit-size
u8   // 0..255
u16  // 0..65535
u36  // 0..4294967295
u64  // ...
u128
usize

Floating Point

f32
f64

Boolean

true
false

Collections

tuples

arrays