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//! An example of implementing the `BitFlags` trait manually for a flags type.
use std::str;
use bitflags::bitflags;
// Define a flags type outside of the `bitflags` macro as a newtype
// It can accept custom derives for libraries `bitflags` doesn't support natively
#[derive(zerocopy::AsBytes, zerocopy::FromBytes, zerocopy::FromZeroes)]
#[repr(transparent)]
pub struct ManualFlags(u32);
// Next: use `impl Flags` instead of `struct Flags`
bitflags! {
impl ManualFlags: u32 {
const A = 0b00000001;
const B = 0b00000010;
const C = 0b00000100;
const ABC = Self::A.bits() | Self::B.bits() | Self::C.bits();
}
}
fn main() {}
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