Struct petgraph::matrix_graph::NotZero[−][src]

pub struct NotZero<T>(_);
Expand description

NotZero is used to optimize the memory usage of edge weights E in a MatrixGraph, replacing the default Option<E> sentinel.

Pre-requisite: edge weight should implement Zero.

Note that if you’re already using the standard non-zero types (such as NonZeroU32), you don’t have to use this wrapper and can leave the default Null type argument.

Trait Implementations

impl<T: Zero> Default for NotZero<T>[src]

fn default() -> Self[src]

Returns the “default value” for a type. Read more

impl<T: Zero> Into<Option<T>> for NotZero<T>[src]

fn into(self) -> Option<T>[src]

Performs the conversion.

impl<T: Zero> Nullable for NotZero<T>[src]

type Wrapped = T

fn new(value: T) -> Self[src]

fn is_null(&self) -> bool[src]

fn as_ref(&self) -> Option<&Self::Wrapped>[src]

fn as_mut(&mut self) -> Option<&mut Self::Wrapped>[src]

Auto Trait Implementations

impl<T> RefUnwindSafe for NotZero<T> where
    T: RefUnwindSafe, 

impl<T> Send for NotZero<T> where
    T: Send, 

impl<T> Sync for NotZero<T> where
    T: Sync, 

impl<T> Unpin for NotZero<T> where
    T: Unpin, 

impl<T> UnwindSafe for NotZero<T> where
    T: UnwindSafe, 

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src]

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

impl<T, U> Into<U> for T where
    U: From<T>, [src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]

Performs the conversion.