[#BloombergLP-bsltf-swap-0f]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bsltf.adoc[bsltf]::swap
:relfileprefix: ../../
:mrdocs:

Exchange the states of the specified `a` and `b`. If the allocators match, both `a` and `b` will be left in a moved‐into state, otherwise, both will not. If `a` and `b` are the same object, this function will have no effect. No allocations shall occur (so no exceptions will be thrown) unless `a` and `b` have different allocators.

== Synopsis

Declared in `<bsltf_wellbehavedmoveonlyalloctesttype.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
swap(
    xref:BloombergLP/bsltf/WellBehavedMoveOnlyAllocTestType.adoc[WellBehavedMoveOnlyAllocTestType]& a,
    xref:BloombergLP/bsltf/WellBehavedMoveOnlyAllocTestType.adoc[WellBehavedMoveOnlyAllocTestType]& b);
----


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