[#bsl-Pair_First-00-2constructor-0d7]
= xref:bsl.adoc[bsl]::xref:bsl/Pair_First-00.adoc[Pair_First]::Pair_First
:relfileprefix: ../../
:mrdocs:

Construct the `first` member from the specified non‐modifiable `value`, without specifying an allocator.

== Synopsis

Declared in `<bslstl_pair.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
explicit
Pair_First(bsl::add_lvalue_reference<TYPE const>::type value);
----


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