[#BloombergLP-bslstp-Identity]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstp.adoc[bslstp]::Identity
:relfileprefix: ../../
:mrdocs:

An identity function.

== Synopsis

Declared in `<bslstp_exfunctional.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class TYPE>
struct Identity;
----

== Type Aliases

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslstp/Identity/argument_type.adoc[`argument_type`] 
| This `typedef` is an alias to the (template parameter) `TYPE`.
| xref:BloombergLP/bslstp/Identity/result_type.adoc[`result_type`] 
| This `typedef` is an alias to the (template parameter) `TYPE`.
|===


== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslstp/Identity/operator_call.adoc[`operator()`] 
| Return a const reference to the specified `x`.
| xref:BloombergLP/bslstp/Identity/2conversion.adoc[`operator BloombergLP::bslmf::NestedTraitDeclaration<Identity, is_trivially_copyable>`] 
| Declare that `Identity` is trivially copyable.
|===



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