A Rust macro to generate structures which behave like a set of bitflags
Add this to your Cargo.toml:
toml
[dependencies]
bitflags = "2.3.2"
and this to your source code:
rust
use bitflags::bitflags;
Generate a flags structure:
```rust use bitflags::bitflags;
// The bitflags! macro generates structs that manage a set of flags.
bitflags! {
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
struct Flags: u32 {
const A = 0b00000001;
const B = 0b00000010;
const C = 0b00000100;
const ABC = Self::A.bits() | Self::B.bits() | Self::C.bits();
}
}
fn main() { let e1 = Flags::A | Flags::C; let e2 = Flags::B | Flags::C; asserteq!((e1 | e2), Flags::ABC); // union asserteq!((e1 & e2), Flags::C); // intersection asserteq!((e1 - e2), Flags::A); // set difference asserteq!(!e2, Flags::A); // set complement } ```
The minimum supported Rust version is documented in the Cargo.toml file.
This may be bumped in minor releases as necessary.