[#bsl-swap-0a4]
= xref:bsl.adoc[bsl]::swap
:relfileprefix: ../
:mrdocs:

Swap the specified `a` with the specified `b` using `a.swap(b)` expression.

== Synopsis

Declared in `<bslstl_syncbuf.h>`

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


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