[#bsl-vectorBase-0c1-operator_subs-06] = xref:bsl.adoc[bsl]::xref:bsl/vectorBase-0c1.adoc[vectorBase<signed char>]::operator[] :relfileprefix: ../../ :mrdocs: Return a reference providing modifiable access to the element at the specified `position` in this vector. The behavior is undefined unless `position < size()`. == Synopsis Declared in `<bslstl_vector.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- xref:bsl/vectorBase-0c1/reference.adoc[reference] operator[](xref:bsl/vectorBase-06a/size_type.adoc[size_type] position); ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#