[#bsl-vectorBase-0cf-at-0f]
= xref:bsl.adoc[bsl]::xref:bsl/vectorBase-0cf.adoc[vectorBase&lt;long double&gt;]::at
:relfileprefix: ../../
:mrdocs:

Return a reference providing non&hyphen;modifiable access to the element at the specified `position` in this vector&period; Throw a `bsl&colon;&colon;out&lowbar;of&lowbar;range` exception if `position &gt;&equals; size()`&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/vectorBase-0cf/const_reference.adoc[const&lowbar;reference]
at(xref:bsl/vectorBase-06a/size_type.adoc[size&lowbar;type] position) const;
----


[.small]#Created with https://www.mrdocs.com[MrDocs]#
