[#bsl-deque-0c-2constructor-0db]
= xref:bsl.adoc[bsl]::xref:bsl/deque-0c.adoc[deque]::deque
:relfileprefix: ../../
:mrdocs:

Create a deque of the specified `numElements` size whose every element is value‐initialized. Optionally specify a `basicAllocator` used to supply memory. If `basicAllocator` is not supplied, a default‐constructed object of the (template parameter) type `ALLOCATOR` is used. If the type `ALLOCATOR` is `bsl::allocator` (the default), then `basicAllocator`, if supplied, shall be convertible to `bslma::Allocator *`. If the type `ALLOCATOR` is `bsl::allocator` and `basicAllocator` is not supplied, the currently installed default allocator is used. Throw `bsl::length_error` if `numElements > max_size()`. This method requires that the (template parameter) `VALUE_TYPE` be `default‐insertable` into this deque (see {Requirements on `VALUE_TYPE`}).

== Synopsis

Declared in `<bslstl_deque.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
explicit
deque(
    xref:bsl/deque-0c/size_type.adoc[size_type] numElements,
    ALLOCATOR const& basicAllocator = ALLOCATOR());
----


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