[#bsl-Pair_First-00-2constructor-04]
= xref:bsl.adoc[bsl]::xref:bsl/Pair_First-00.adoc[Pair&lowbar;First]::Pair&lowbar;First
:relfileprefix: ../../
:mrdocs:

Construct the `first` member from the specified `value`&period;

== Synopsis

Declared in `&lt;bslstl&lowbar;pair&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;
    class PARAM,
    class = void&gt;
requires !bsl&colon;&colon;is&lowbar;same&lt;Pair&lowbar;First, bsl&colon;&colon;remove&lowbar;cvref&lowbar;t&lt;PARAM&gt;&gt;&colon;&colon;value
constexpr
explicit
Pair&lowbar;First(PARAM&& value);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *value*
| value forwarded to the constructor of `TYPE`
|===


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