[#bitset_detail-swap-0d]
= xref:bitset_detail.adoc[bitset_detail]::swap
:relfileprefix: ../
:mrdocs:

Swap two bitsets.

== Synopsis

Declared in `<util/bitset.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
void
swap(
    xref:bitset_detail/IntBitSet.adoc[IntBitSet]& a,
    xref:bitset_detail/IntBitSet.adoc[IntBitSet]& b) noexcept;
----

[NOTE]
====
This function is a https://en.cppreference.com/w/cpp/language/friend[hidden friend] of xref:bitset_detail/IntBitSet.adoc[IntBitSet], declared only inside that class: it can be found only through argument-dependent lookup.
====

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| The first bitset.
| *b*
| The second bitset.
|===


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