[#bsl-priority_queue-034-2constructor-0f]
= xref:bsl.adoc[bsl]::xref:bsl/priority_queue-034.adoc[priority_queue]::priority_queue
:relfileprefix: ../../
:mrdocs:

Create an empty priority queue, adapting a default‐constructed container of the (template parameter) type `CONTAINER` that uses the specified `basicAllocator` to supply memory, and the specified `comparator` to order elements in the priority queue. Note that this constructor is only defined if the underlying container uses allocator. Otherwise this constructor is disabled.

== Synopsis

Declared in `<bslstl_priorityqueue.h>`

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


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