[#absl-nontype_t]
= xref:absl.adoc[absl]::nontype_t
:relfileprefix: ../
:mrdocs:

Backfill for std::nontype_t.

== Synopsis

Declared in `<absl/utility/utility.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<auto>
struct nontype_t;
----

== Description

An instance of this class can be provided as a disambiguation tag to `absl::function_ref` to pass the address of a known callable at compile time. Requires C++20 due to `auto` template parameter.

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:absl/nontype_t/2constructor.adoc[`nontype_t`]         [.small]#[constructor]#
| Construct a `nontype_t` tag.
|===



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