[#absl-FastTypeIdType-2constructor]
= xref:absl.adoc[absl]::xref:absl/FastTypeIdType.adoc[FastTypeIdType]::FastTypeIdType
:relfileprefix: ../../
:mrdocs:

Creates a value that does not correspond to any type&period; This value is distinct from any value returned by `FastTypeId&lt;T&gt;()`&period;

== Synopsis

Declared in `&lt;absl&sol;base&sol;fast&lowbar;type&lowbar;id&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
FastTypeIdType() = default;
----


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