[#memusage-DynamicUsage-01]
= xref:memusage.adoc[memusage]::DynamicUsage
:relfileprefix: ../
:mrdocs:

Dynamic memory used by a pool‐allocated unordered_map, including the pool resource.

== Synopsis

Declared in `<memusage.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class Key,
    class T,
    class Hash,
    class Pred,
    std::size_t MAX_BLOCK_SIZE_BYTES,
    std::size_t ALIGN_BYTES>
static
size_t
DynamicUsage(std::unordered_map<Key, T, Hash, Pred, PoolAllocator<std::pair<Key const, T>, MAX_BLOCK_SIZE_BYTES, ALIGN_BYTES>> const& m);
----

== Return Value

The bytes allocated for the pool chunks plus the bucket array.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *m*
| The pool‐allocated unordered_map to measure.
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#