[#BloombergLP-bslstl-Optional_Base-05-value-0d]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::xref:BloombergLP/bslstl/Optional_Base-05.adoc[Optional_Base]::value
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:mrdocs:

Return a reference providing non‐modifiable access to the underlying `t_TYPE` object if `true == has_value()` and throw `bsl::bad_optional_access` otherwise.

== Synopsis

Declared in `<bslstl_optional.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
t_TYPE const&
value() const &;
----


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