[#bsl-pair-0b-2constructor-04f]
= xref:bsl.adoc[bsl]::xref:bsl/pair-0b.adoc[pair]::pair
:relfileprefix: ../../
:mrdocs:

Same as the preceding constructor, using the specified `basicAllocator` to supply memory.

== Synopsis

Declared in `<bslstl_pair.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class... ARGS_1,
    class... ARGS_2>
pair(
    std::piecewise_construct_t tag,
    std::tuple<ARGS_1...> first_args,
    std::tuple<ARGS_2...> second_args,
    xref:BloombergLP/bslma/Allocator.adoc[BloombergLP::bslma::Allocator]* basicAllocator);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *tag*
| tag selecting piece‐wise construction
| *first_args*
| tuple of arguments forwarded to the constructor of `T1`
| *second_args*
| tuple of arguments forwarded to the constructor of `T2`
| *basicAllocator*
| allocator used to supply memory
|===


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