[#BloombergLP-bdlf-Bind_MemFnObjectWrapper]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlf.adoc[bdlf]::Bind_MemFnObjectWrapper
:relfileprefix: ../../
:mrdocs:

This local class wraps an object used to invoke a bound member function.

== Synopsis

Declared in `<bdlf_bind.h>`

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

== Description

In explicit binding, the argument types of `operator()` are determined during `Bind` instantiation. If a member function is bound and the object is passed as an invocation argument, the exact type of the object — whether it is a pointer or reference — cannot be determined from the method signature. This wrapper serves as an intermediate type around the object pointer or reference and is declared to have pointer semantics so `MemFn` can dereference it.

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bdlf/Bind_MemFnObjectWrapper/2constructor-0f.adoc[`Bind_MemFnObjectWrapper`]         [.small]#[constructor]#
| Constructors
| xref:BloombergLP/bdlf/Bind_MemFnObjectWrapper/operator_star.adoc[`operator*`] 
| Returns a reference to the object (of parameterized `TYPE`) pointed to by this `Bind_MemFnObjectWrapper`.
| xref:BloombergLP/bdlf/Bind_MemFnObjectWrapper/2conversion-0e.adoc[`operator BloombergLP::bslmf::NestedTraitDeclaration<Bind_MemFnObjectWrapper, HasPointerSemantics>`] 
| Declare that this type has pointer semantics.
| xref:BloombergLP/bdlf/Bind_MemFnObjectWrapper/2conversion-04.adoc[`operator BloombergLP::bslmf::NestedTraitDeclaration<Bind_MemFnObjectWrapper, IsBitwiseMoveable>`] 
| Declare that this type is bitwise moveable.
|===



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