Returns a functor that dereferences whatever is passed to it.

Synopsis

Declared in <absl/types/any_span.h>

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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