Struct petgraph::graphmap::Ptr

pub struct Ptr<'b, T: 'b>(pub &'b T);

A reference that is hashed and compared by its pointer value.

Ptr is used for certain configurations of GraphMap, in particular in the combination where the node type for GraphMap is something of type for example Ptr(&Cell<T>), with the Cell<T> being TypedArena allocated.

Trait Implementations

impl<'b, T> Copy for Ptr<'b, T>

impl<'b, T> Clone for Ptr<'b, T>

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'b, T> PartialEq for Ptr<'b, T>

fn eq(&self, other: &Ptr<'b, T>) -> bool

Ptr compares by pointer equality, i.e if they point to the same value

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl<'b, T> PartialOrd for Ptr<'b, T>

fn partial_cmp(&self, other: &Ptr<'b, T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'b, T> Ord for Ptr<'b, T>

fn cmp(&self, other: &Ptr<'b, T>) -> Ordering

Ptr is ordered by pointer value, i.e. an arbitrary but stable and total order.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

impl<'b, T> Deref for Ptr<'b, T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.

impl<'b, T> Eq for Ptr<'b, T>

impl<'b, T> Hash for Ptr<'b, T>

fn hash<H: Hasher>(&self, st: &mut H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].

impl<'b, T: Debug> Debug for Ptr<'b, T>

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.