[#BloombergLP-bslstl-Function_Rep]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::Function_Rep
:relfileprefix: ../../
:mrdocs:

This is a component‐private class. Do not use.

== Synopsis

Declared in `<bslstl_function_rep.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
class Function_Rep;
----

== Description

This class provides a non‐template representation for a `bsl::function` instance. It handles all of the object‐management parts of `bsl::function` that are not specific to the prototype (argument list and return type), e.g., storing, copying, and moving the `function` object, but not invoking the `function` (which requires knowledge of the prototype). These management methods are run‐time polymorphic, and therefore do not require that this class be a template (although several of the member functions are templates).

== Type Aliases

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslstl/Function_Rep/GenericInvoker.adoc[`GenericInvoker`] 
| A "generic" function type analogous to the data type `void` (though without the language support provided by `void`).
| xref:BloombergLP/bslstl/Function_Rep/allocator_type.adoc[`allocator_type`] 
| Alias for the allocator type held for allocator‐aware clients.
|===


== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslstl/Function_Rep/2constructor.adoc[`Function_Rep`]         [.small]#[constructor]#
| Create an empty object using the specified `allocator` to supply memory.
| xref:BloombergLP/bslstl/Function_Rep/2destructor.adoc[`~Function_Rep`] [.small]#[destructor]#
| Destroy this object and deallocate any non‐inplace target storage.
| xref:BloombergLP/bslstl/Function_Rep/copyInit.adoc[`copyInit`] 
| Copy‐initialize this rep from the specified `original` rep.
| xref:BloombergLP/bslstl/Function_Rep/get_allocator.adoc[`get_allocator`] 
| Return the allocator used to supply memory for this object.
| xref:BloombergLP/bslstl/Function_Rep/installFunc.adoc[`installFunc`] 
| Install `func` as the target and set the invoker, or leave empty.
| xref:BloombergLP/bslstl/Function_Rep/invoker.adoc[`invoker`] 
| Return a pointer the invoker function set using `installFunc` or a null pointer if this object is empty.
| xref:BloombergLP/bslstl/Function_Rep/isEmpty.adoc[`isEmpty`] 
| Return `true` if `invoker()` is a null pointer, indicating that this object has no target object.
| xref:BloombergLP/bslstl/Function_Rep/isInplace.adoc[`isInplace`] 
| Return `true` if the target is allocated in place within the small‐object buffer of this object; otherwise return `false`.
| xref:BloombergLP/bslstl/Function_Rep/makeEmpty.adoc[`makeEmpty`] 
| Make this object empty without changing its allocator.
| xref:BloombergLP/bslstl/Function_Rep/moveInit.adoc[`moveInit`] 
| Move‐initialize this rep from the rep at the specified `from`.
| xref:BloombergLP/bslstl/Function_Rep/swap.adoc[`swap`] 
| Exchange this object's target, manager, and invoker with `other`.
| xref:BloombergLP/bslstl/Function_Rep/target.adoc[`target`] 
| Return a modifiable pointer to the target if its type is `TP`.
| xref:BloombergLP/bslstl/Function_Rep/targetRaw.adoc[`targetRaw`] 
| Return a modifiable pointer to this object's target.
| xref:BloombergLP/bslstl/Function_Rep/target_type.adoc[`target_type`] 
| Return the `type_info` for the current target, or `typeid(void)`.
|===



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