[#bsl-function-0a-isInplace]
= xref:bsl.adoc[bsl]::xref:bsl/function-0a.adoc[function]::isInplace
:relfileprefix: ../../
:mrdocs:

Return `true` if this `function` is empty or if it is non&hyphen;empty and its target qualifies for the small&hyphen;object optimization (and is thus allocated within this object&apos;s footprint)&semi; otherwise, return false&period;

== Synopsis

Declared in `&lt;bslstl&lowbar;function&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
isInplace() const noexcept;
----

== Description

DEPRECATED&colon; Runtime checking of this optimization is discouraged&period;


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