Superbitty

A bitfields crate.

```rust use superbitty::{bitfields, BitFieldCompatible};

[derive(BitFieldCompatible, Debug, Clone, Copy, PartialEq, Eq)]

pub enum Enum { A, B, C, D, }

[derive(Clone, Copy)]

pub struct Rest(pub u8);

// SAFETY: We only set this via Bitfields, and thus the values are guaranteed // to stay in range. unsafe impl BitFieldCompatible for Rest { const SHIFT: u32 = 0; const BITSLEN: u32 = 6; fn intoraw(self) -> u128 { self.0 as u128 } unsafe fn from_raw(v: u128) -> Self { Self(v as u8) } }

bitfields! { pub struct Bitfields : u8 { pub e: Enum, pub r: Rest, } }

fn main() { let mut instance = Bitfields::new(Enum::B, Rest(0b010)); asserteq!(instance.e(), Enum::B); instance.setr(Rest(0b101)); assert_eq!(instance.r().0, 0b101); } ```