[#BloombergLP-bdlb-operator_eq-03c1]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::operator==
:relfileprefix: ../../
:mrdocs:

If neither of the specified `lhs` and `rhs` contain a value, return `true`. If one contains a value, and the other does not, return `false`. Otherwise, return `lhs.value == rhs.value()`.

== Synopsis

Declared in `<bdlb_nullableallocatedvalue.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class LHS_TYPE,
    class RHS_TYPE>
bool
operator==(
    xref:BloombergLP/bdlb/NullableAllocatedValue.adoc[NullableAllocatedValue<LHS_TYPE>] const& lhs,
    xref:bsl/optional-072.adoc[bsl::optional<RHS_TYPE>] const& rhs);
----


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