[#BloombergLP-bdlb-TransformIterator-2constructor-0d7]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::xref:BloombergLP/bdlb/TransformIterator.adoc[TransformIterator]::TransformIterator
:relfileprefix: ../../../
:mrdocs:

Create a transform iterator from the specified iterator and functor.

== Synopsis

Declared in `<bdlb_transformiterator.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
TransformIterator(
    ITERATOR const& iterator,
    FUNCTOR functor,
    xref:BloombergLP/bslma/Allocator.adoc[bslma::Allocator]* basicAllocator = 0);
----

== Description

Create a `TransformIterator` object using the specified `iterator` and `functor`. Optionally specify a `basicAllocator` used to supply memory. If `basicAllocator` is 0, the currently installed default allocator is used.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *iterator*
| underlying iterator to hold
| *functor*
| transforming functor to apply on dereference
| *basicAllocator*
| allocator used to supply memory
|===


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