How to convert primitive types to bytes or cast ptr to any type?

[doki23]

Is there any zero copy way to get bytes like below?

a := 1
b := a.as_bytes() // b is a []u8

or maybe unsafe code

b := &a as []u8

[JalonSolov]

No, there is no "zero copy" way other than using unions (same as C unions).

You can use the binary module routines to convert with copy.