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

Component‐private base holding and constructing a pair's `second` member.

== Synopsis

Declared in `<bslstl_pair.h>`

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

== Description

This component‐private `class` holds the `second` data member of a `pair` and constructs it appropriately. Note the partial specializations below for the cases that (template parameter) 'TYPE' is a reference.

== Protected Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:bsl/Pair_Second-05e/2constructor-07.adoc[`Pair_Second`]         [.small]#[constructor]#
| Constructors
|===


== Protected Data Members

[cols="1,4"]
|===
| Name| Description
| xref:bsl/Pair_Second-05e/second.adoc[`second`] 
| Second element of the pair.
|===


== Specializations

[cols="1,4"]
|===
| Name| Description
| xref:bsl/Pair_Second-01.adoc[`Pair_Second<TYPE&>`] 
| Component‐private base holding a pair's `second` member by lvalue reference.
| xref:bsl/Pair_Second-05b.adoc[`Pair_Second<TYPE&&>`] 
| Component‐private base holding a pair's `second` member by rvalue reference.
|===


== Derived Classes

[cols="1,4"]
|===
| Name| Description
| xref:bsl/pair-0b.adoc[`pair`] 
| A pair of public data members, `first` and `second`, that supports `bslma` allocators.
|===


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