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Rust Basics Cheat Sheet (DRAFT) by

This is a draft cheat sheet. It is a work in progress and is not finished yet.

Variables / Assignment

let i = 1i;
 
let hello = "­wor­ld";
 
let mut canChange = 2;
canChange += 1;
 

Integer Literals

Decimal
 
1234
or 
1_234
Hex
 
0xffff
or 
0xff_ff
Octal
 
0o7777
or 
0o77_77
Binary
 
0b11111111
or 
0b1111­_1111
Byte (u8 only)
b'A'
 

Integer Types

Length
Signed
Unsigned
8-bit int
i8
u8
16-bit int
i16
u16
32-bit int
i32
u32
64-bit int
i64
u64
arch int
isize
usize