[#BloombergLP-bdlc-operator_not_eq-0473]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlc.adoc[bdlc]::operator!=
:relfileprefix: ../../
:mrdocs:

Return whether the sets differ in contents.

== Synopsis

Declared in `<bdlc_flathashset.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<>
bool
operator!=(
    xref:BloombergLP/bdlc/FlatHashSet.adoc[FlatHashSet] const& a,
    xref:BloombergLP/bdlc/FlatHashSet.adoc[FlatHashSet] const& b);
----

== Return Value

`true` if not equal, and `false` otherwise

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| first set to compare
| *b*
| second set to compare
|===


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