[#BloombergLP-bdlb-operator_not_eq-001]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::operator!=
:relfileprefix: ../../
:mrdocs:

Return whether `lhs` and `rhs` do not have the same value.

== Synopsis

Declared in `<bdlb_nullablevalueref.h>`

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

== Description

Return `true` if the specified `lhs` and `rhs` nullable objects do not have the same value, and `false` otherwise. Two nullable wrappers do not have the same value if one is null and the other is non‐null, or if both are non‐null and the values of their underlying objects do not compare equal. Note that this function will fail to compile if `LHS_TYPE` and `RHS_TYPE` are not compatible.

== Return Value

`true` if the specified `lhs` and `rhs` nullable objects do not have the same value, and `false` otherwise

== Parameters

[cols="1,4"]
|===
| Name| Description
| *lhs*
| left‐hand operand
| *rhs*
| right‐hand operand
|===


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