How to read two last bits from Int8?

Question

How can I get the last two bits from Int8?

I would like to convert 00110010 to 00000010.

Possible duplicate of [What is Bit Masking?](https://stackoverflow.com/questions/10493411/what-is-bit-masking) — Jesuisme, Aug 15 '17 at 17:01

score 3 · Accepted Answer · edited Aug 15 '17 at 17:58

3

Use the bitwise and operator, &:

let byte: Int8 = 0b0011_0010
let masked = byte & 0b0000_0011
print(String(masked, radix: 2)) // => 10

edited Aug 15 '17 at 17:58

rmaddy

answered Aug 15 '17 at 16:49

Alexander

Curious - why don't you use the `byte` variable on the 2nd line? Typo? – rmaddy Aug 15 '17 at 17:57
@rmaddy Yep, could you fix pls? On mobile – Alexander Aug 15 '17 at 17:57

1 Answers1