[#bsl-set-0d-max_size]
= xref:bsl.adoc[bsl]::xref:bsl/set-0d.adoc[set]::max_size
:relfileprefix: ../../
:mrdocs:

Return a theoretical upper bound on this set's size.

== Synopsis

Declared in `<bslstl_set.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/set-0d/size_type.adoc[set<KEY, COMPARATOR, ALLOCATOR>::size_type]
max_size() const noexcept;
----

== Description

Note that there is no guarantee that the set can successfully grow to the returned size, or even close to that size without running out of resources.

== Return Value

theoretical maximum number of elements


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