Struct idcontain::Id
[−]
[src]
pub struct Id<T> {
// some fields omitted
}The Id of an element of type T as returned by IdVec insertions.
Id-s are opaque, but Copy, comparable and hashable. Think of an Id as a safe *const T
which you can dereference if you have a reference to the originating IdVec.
Implementation
Internally an Id is implemented as an (index, tag) pair. The index points to a slot in
the IdVec, while the tag allows disambiguating between values when a slot gets reused (a
matching tag is stored in the slot and is incremented every time a value is removed from that
slot).
Trait Implementations
impl<T: Debug> Debug for Id<T>[src]
impl<T: Hash> Hash for Id<T>[src]
fn hash<__HT: Hasher>(&self, __arg_0: &mut __HT)
Feeds this value into the state given, updating the hasher as necessary.
fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher1.3.0
Feeds a slice of this type into the state provided.
impl<T: PartialOrd> PartialOrd for Id<T>[src]
fn partial_cmp(&self, __arg_0: &Id<T>) -> Option<Ordering>
This method returns an ordering between self and other values if one exists. Read more
fn lt(&self, __arg_0: &Id<T>) -> bool
This method tests less than (for self and other) and is used by the < operator. Read more
fn le(&self, __arg_0: &Id<T>) -> bool
This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
fn gt(&self, __arg_0: &Id<T>) -> bool
This method tests greater than (for self and other) and is used by the > operator. Read more
fn ge(&self, __arg_0: &Id<T>) -> bool
This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
impl<T: Ord> Ord for Id<T>[src]
fn cmp(&self, __arg_0: &Id<T>) -> Ordering
This method returns an Ordering between self and other. Read more
impl<T: PartialEq> PartialEq for Id<T>[src]
fn eq(&self, __arg_0: &Id<T>) -> bool
This method tests for self and other values to be equal, and is used by ==. Read more
fn ne(&self, __arg_0: &Id<T>) -> bool
This method tests for !=.
impl<T: Eq> Eq for Id<T>[src]
impl<T> Clone for Id<T>[src]
fn clone(&self) -> Self
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)1.0.0
Performs copy-assignment from source. Read more