[#bsl-Pair_Second-05e-2constructor-0f]
= xref:bsl.adoc[bsl]::xref:bsl/Pair_Second-05e.adoc[Pair_Second]::Pair_Second
:relfileprefix: ../../
:mrdocs:

Construct the `second` member with the allocator as the last argument.

== Synopsis

Declared in `<bslstl_pair.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
Pair_Second(
    xref:BloombergLP/bslma/Allocator.adoc[BloombergLP::bslma::Allocator]* basicAllocator,
    xref:bsl/Pair_BslmaIdiomAtEnd.adoc[Pair_BslmaIdiomAtEnd] idiom);
----

== Description

Construct the `second` member of a `pair`, using the specified `basicAllocator` to supply memory. This constructor is selected when (template parameter) `TYPE` takes a `bslma`‐style allocator as the last constructor argument.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *basicAllocator*
| allocator used to supply memory
| *idiom*
| tag selecting the trailing‐allocator construction idiom
|===


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