[#bsl-variant-2constructor-026]
= xref:bsl.adoc[bsl]::xref:bsl/variant.adoc[variant]::variant
:relfileprefix: ../../
:mrdocs:

Create a `variant` object holding a moved copy of `original`'s alternative using `allocator`.

== Synopsis

Declared in `<bslstl_variant.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class t_FIRST = t_HEAD>
requires BloombergLP::bslstl::
                Variant_IsMoveConstructibleAll<t_FIRST, t_TAIL...>::value
variant(
    std::allocator_arg_t allocatorArg,
    xref:bsl/variant/allocator_type.adoc[allocator_type] allocator,
    xref:bsl/variant.adoc[variant]&& original);
----

== Description

Create a `variant` object holding the same alternative (if any) held by the specified `original`. If this `variant` is allocator‐aware, the specified `allocator` is used to supply memory. If `original` is not valueless by exception, the contained value is move‐constructed from the contained value of `original`. This constructor participates in overload resolution only if all alternatives are move constructible.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *allocatorArg*
| tag selecting the allocator‐extended overload
| *allocator*
| allocator used to supply memory
| *original*
| variant to move from
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#