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

Returns a functor that dereferences whatever is passed to it.

== Synopsis

Declared in `<absl/types/any_span.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:absl/any_span_transform/DerefT.adoc[DerefT] const&
Deref();
----

== Description

Works for smart and raw pointers, as well as `std::optional`. Do not use it with containers holding elements that cannot be dereferenced, such as null pointers. The reference stays valid for the duration of the program.

== Return Value

A const reference to the shared deref functor.


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