Trait Sentinel 

pub trait Sentinel: Eq {
    const SENTINEL: Self;
}

Implemented for types which has a sentinel value.

Required Associated Constants

const SENTINEL: Self

Obtains the sentinel value.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl Sentinel for i8

const SENTINEL: Self = 0

impl Sentinel for i16

const SENTINEL: Self = 0

impl Sentinel for i32

const SENTINEL: Self = 0

impl Sentinel for i64

const SENTINEL: Self = 0

impl Sentinel for i128

const SENTINEL: Self = 0

impl Sentinel for isize

const SENTINEL: Self = 0

impl Sentinel for u8

const SENTINEL: Self = 0

impl Sentinel for u16

const SENTINEL: Self = 0

impl Sentinel for u32

const SENTINEL: Self = 0

impl Sentinel for u64

const SENTINEL: Self = 0

impl Sentinel for u128

const SENTINEL: Self = 0

impl Sentinel for usize

const SENTINEL: Self = 0

impl<T: Eq> Sentinel for Option<T>

const SENTINEL: Self = None

impl<T> Sentinel for *const T

const SENTINEL: Self

impl<T> Sentinel for *mut T

const SENTINEL: Self

Implementors