[#BloombergLP-bslalg-FunctorAdapter-09]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslalg.adoc[bslalg]::FunctorAdapter
:relfileprefix: ../../
:mrdocs:

This class provides a metafunction that defines an alias `Type` for the parameterized `CALLABLE_OBJECT`. `Type` is functor type that provides the same operation as the parameterized `CALLABLE_OBJECT`. Note that function pointers are supported through a specialization of this template.

== Synopsis

Declared in `<bslalg_functoradapter.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class CALLABLE_OBJECT>
class FunctorAdapter;
----

== Type Aliases

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslalg/FunctorAdapter-09/Type.adoc[`Type`] 
| This `typedef` is an alias for the functor.
|===


== Specializations

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslalg/FunctorAdapter-03.adoc[`FunctorAdapter<FUNCTION*>`] 
| This specialization of `FunctorAdapter` defines an alias `Type` for a functor that delegates to a function pointer matching the parameterized `FUNCTION` type.
|===


== Derived Classes

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslstl/HashTable_BaseHasher.adoc[`HashTable_BaseHasher`] 
| This `struct` adapts the (template parameter) `HASHER` type for use as the base hasher of a `HashTable`.
| xref:BloombergLP/bslstl/HashTable_Comparator.adoc[`HashTable_Comparator`] 
| Comparator adapter used by `HashTable`.
|===


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