[#bsl-swap-046]
= xref:bsl.adoc[bsl]::swap
:relfileprefix: ../
:mrdocs:

Exchange the contents of the specified hash multimaps.

== Synopsis

Declared in `<bslstp_hashmap.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class _Key,
    class _Tp,
    class _HashFcn,
    class _EqualKey,
    class _Alloc>
void
swap(
    xref:bsl/hash_multimap.adoc[hash_multimap<_Key, _Tp, _HashFcn, _EqualKey, _Alloc>]& lhs,
    xref:bsl/hash_multimap.adoc[hash_multimap<_Key, _Tp, _HashFcn, _EqualKey, _Alloc>]& rhs);
----


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