[#bsl-queue-0a5-2constructor-01]
= xref:bsl.adoc[bsl]::xref:bsl/queue-0a5.adoc[queue]::queue
:relfileprefix: ../../
:mrdocs:

Create an empty queue. This queue object uses the specified `basicAllocator` to supply memory. Note that the `ALLOCATOR` parameter type has to be convertible to the allocator of the `CONTAINER` parameter type, `CONTAINER::allocator_type`; otherwise, this constructor is disabled.

== Synopsis

Declared in `<bslstl_queue.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class ALLOCATOR>
explicit
queue(
    ALLOCATOR const& basicAllocator,
    ALLOCATOR* = 0)
requires bsl::uses_allocator<CONTAINER, ALLOCATOR>::value;
----


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