[#bsl-priority_queue-03d]
= xref:bsl.adoc[bsl]::xref:bsl/priority_queue-034.adoc[priority_queue<t_TYPE, vector<t_TYPE, t_ALLOCATOR>, t_COMPARATOR>]
:relfileprefix: ../
:mrdocs:

Deduce the template parameters `VALUE`, `COMPARATOR`, and `ALLOCATOR` from the parameters supplied to the constructor of `priority_queue`. This deduction guide does not participate if the `t_ALLOCATOR` parameter does not meet the requirements for a standard allocator or the `t_COMPARATOR` parameter meets the requirements for a standard allocator.

== Synopsis

Declared in `<bslstl_priorityqueue.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    ranges::input_range t_RANGE,
    class t_COMPARATOR,
    class t_ALLOCATOR,
    class t_TYPE = ranges::range_value_t<t_RANGE>>
requires (!IsStdAllocator_v<t_COMPARATOR> && IsStdAllocator_v<t_ALLOCATOR>)
xref:bsl/priority_queue-034.adoc[priority_queue<t_TYPE, vector<t_TYPE, t_ALLOCATOR>, t_COMPARATOR>](
    std::from_range_t,
    t_RANGE&&,
    t_COMPARATOR,
    t_ALLOCATOR) -> xref:bsl/priority_queue-034.adoc[priority_queue<t_TYPE, vector<t_TYPE, t_ALLOCATOR>, t_COMPARATOR>];
----


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