[#absl-node_hash_set]
= xref:absl.adoc[absl]::node_hash_set
:relfileprefix: ../
:mrdocs:

An unordered associative container of unique keys that provides pointer stability for its elements.

== Synopsis

Declared in `<absl/container/node_hash_set.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class T,
    class Hash = /* implementation-defined */::DefaultHash,
    class Eq = /* implementation-defined */::DefaultEq,
    class Alloc = /* implementation-defined */::DefaultAlloc>
class node_hash_set
    : public /* implementation-defined */::InstantiateRawHashSet</* implementation-defined */, Hash, Eq, Alloc>::type
----

== Description

An `absl::node_hash_set<T>` is an unordered associative container which has been optimized for both speed and memory footprint in most common use cases. Its interface is similar to that of `std::unordered_set<T>`, and unlike `absl::flat_hash_set` it guarantees pointer stability of its elements.

== Base Classes

[cols="1,4"]
|===
| Name| Description
| `/* implementation-defined */::InstantiateRawHashSet</* implementation-defined */, Hash, Eq, Alloc>::type`
| 
|===

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:absl/node_hash_set/2constructor.adoc[`node_hash_set`]         [.small]#[constructor]#
| Constructs an empty `node_hash_set`.
|===


== Using Declarations

[cols="1"]
|===
| Name
| xref:absl/node_hash_set/_10using.adoc[`Unnamed using`] 
| xref:absl/node_hash_set/begin.adoc[`begin`] 
| xref:absl/node_hash_set/bucket_count.adoc[`bucket_count`] 
| xref:absl/node_hash_set/capacity.adoc[`capacity`] 
| xref:absl/node_hash_set/cbegin.adoc[`cbegin`] 
| xref:absl/node_hash_set/cend.adoc[`cend`] 
| xref:absl/node_hash_set/clear.adoc[`clear`] 
| xref:absl/node_hash_set/contains.adoc[`contains`] 
| xref:absl/node_hash_set/count.adoc[`count`] 
| xref:absl/node_hash_set/emplace.adoc[`emplace`] 
| xref:absl/node_hash_set/emplace_hint.adoc[`emplace_hint`] 
| xref:absl/node_hash_set/empty.adoc[`empty`] 
| xref:absl/node_hash_set/end.adoc[`end`] 
| xref:absl/node_hash_set/equal_range.adoc[`equal_range`] 
| xref:absl/node_hash_set/erase.adoc[`erase`] 
| xref:absl/node_hash_set/extract.adoc[`extract`] 
| xref:absl/node_hash_set/find.adoc[`find`] 
| xref:absl/node_hash_set/get_allocator.adoc[`get_allocator`] 
| xref:absl/node_hash_set/hash_function.adoc[`hash_function`] 
| xref:absl/node_hash_set/insert.adoc[`insert`] 
| xref:absl/node_hash_set/key_eq.adoc[`key_eq`] 
| xref:absl/node_hash_set/load_factor.adoc[`load_factor`] 
| xref:absl/node_hash_set/max_load_factor.adoc[`max_load_factor`] 
| xref:absl/node_hash_set/max_size.adoc[`max_size`] 
| xref:absl/node_hash_set/merge.adoc[`merge`] 
| xref:absl/node_hash_set/rehash.adoc[`rehash`] 
| xref:absl/node_hash_set/reserve.adoc[`reserve`] 
| xref:absl/node_hash_set/size.adoc[`size`] 
| xref:absl/node_hash_set/swap.adoc[`swap`] 
|===


== Non-Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:absl/erase_if-0f7.adoc[`erase_if`]
| Erases all elements that satisfy the predicate `pred` from the container `c`.
| xref:absl/swap-0fd.adoc[`swap`]
| Swaps the contents of two `node_hash_set` containers.
|===


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