[#bsl-vector-044-at-08b] = xref:bsl.adoc[bsl]::xref:bsl/vector-044.adoc[vector<ZoneinfoTransition>]::at :relfileprefix: ../../ :mrdocs: `at` overloads == Synopses Declared in `<bslstl_vector.h>` Return a reference providing modifiable access to the element at the specified `position` in this vector. Throw a `std::out_of_range` exception if `position >= size()`. [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- xref:bsl/vectorBase-06a.adoc[reference] xref:bsl/vector-044/at-06.adoc[at](xref:bsl/vectorBase-06a/size_type.adoc[size_type] position); ---- [.small]#xref:bsl/vector-044/at-06.adoc[_» more..._]# Return a reference providing non‐modifiable access to the element at the specified `position` in this vector. Throw a `bsl::out_of_range` exception if `position >= size()`. [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- xref:bsl/vectorBase-06a.adoc[const_reference] xref:bsl/vector-044/at-088.adoc[at](xref:bsl/vectorBase-06a/size_type.adoc[size_type] position) const; ---- [.small]#xref:bsl/vector-044/at-088.adoc[_» more..._]# [.small]#Created with https://www.mrdocs.com[MrDocs]#