[#bsl-swap-001]
= xref:bsl.adoc[bsl]::swap
:relfileprefix: ../
:mrdocs:

Exchange the values of the specified `a` and `b` multisets.

== Synopsis

Declared in `<bslstl_multiset.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class KEY,
    class COMPARATOR,
    class ALLOCATOR>
void
swap(
    xref:bsl/multiset-03.adoc[multiset<KEY, COMPARATOR, ALLOCATOR>]& a,
    xref:bsl/multiset-03.adoc[multiset<KEY, COMPARATOR, ALLOCATOR>]& b) noexcept(noexcept(a.swap(b)));
----


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