[#BloombergLP-bdldfp-DecimalUtil-isUnordered-0e]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdldfp.adoc[bdldfp]::xref:BloombergLP/bdldfp/DecimalUtil.adoc[DecimalUtil]::isUnordered
:relfileprefix: ../../../
:mrdocs:

Return `true` if either argument is a NaN.

== Synopsis

Declared in `<bdldfp_decimalutil.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
bool
isUnordered(
    xref:BloombergLP/bdldfp/Decimal64.adoc[Decimal64] x,
    xref:BloombergLP/bdldfp/Decimal64.adoc[Decimal64] y);
----


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