[#BloombergLP-bdlb-operator_3way-07]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::operator<=>
:relfileprefix: ../../
:mrdocs:

Perform a three‐way comparison of the specified `value` and one of type `bsl::nullopt_t`; return the result of that comparison.

== Synopsis

Declared in `<bdlb_nullablevalue.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class TYPE>
constexpr
std::strong_ordering
operator<=>(
    xref:BloombergLP/bdlb/NullableValue.adoc[NullableValue<TYPE>] const& value,
    xref:bsl/nullopt_t.adoc[bsl::nullopt_t] const&) noexcept;
----


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