[#bsl-vectorBase-06a-begin-03]
= xref:bsl.adoc[bsl]::xref:bsl/vectorBase-06a.adoc[vectorBase]::begin
:relfileprefix: ../../
:mrdocs:

Return an iterator providing modifiable access to the first element in this vector, or the past‐the‐end iterator if this vector is empty.

== Synopsis

Declared in `<bslstl_vector.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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xref:bsl/vectorBase-06a/iterator.adoc[vectorBase<VALUE_TYPE>::iterator]
begin() noexcept;
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