[#BloombergLP-bdlb-NullableAllocatedValue-value_or]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::xref:BloombergLP/bdlb/NullableAllocatedValue.adoc[NullableAllocatedValue]::value_or
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Return the value of the underlying object of a (template parameter) `TYPE` if this object is non‐null, and the specified `default_value` otherwise. Note that this method returns _by_ _value_, so may be inefficient in some contexts.

== Synopsis

Declared in `<bdlb_nullableallocatedvalue.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class ANY_TYPE>
TYPE
value_or(ANY_TYPE const& default_value) const;
----


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