[#bsl-vectorBase-09-data-00c]
= xref:bsl.adoc[bsl]::xref:bsl/vectorBase-09.adoc[vectorBase<bool>]::data
:relfileprefix: ../../
:mrdocs:

Return the address of the modifiable first element in this vector, or a valid, but non‐dereferenceable pointer value if this vector is empty.

== Synopsis

Declared in `<bslstl_vector.h>`

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


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