[#FB_NOT_NULL_MK_OP]
= FB&lowbar;NOT&lowbar;NULL&lowbar;MK&lowbar;OP
:mrdocs:

Comparison&colon; &hyphen; Forwards to underlying PtrT&period; &hyphen; Works when one of the operands is not not&lowbar;null&period; &hyphen; Works when one of the operands is nullptr&period;

== Synopsis

Declared in `&lt;folly&sol;memory&sol;not&lowbar;null&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
#define FB&lowbar;NOT&lowbar;NULL&lowbar;MK&lowbar;OP(op)

----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *op*
| The comparison operator token to generate overloads for&period;
|===


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