[#bsl-deque-0c-2constructor-0f62]
= xref:bsl.adoc[bsl]::xref:bsl/deque-0c.adoc[deque]::deque
:relfileprefix: ../../
:mrdocs:

Constructors

== Synopses

Declared in `<bslstl_deque.h>`

Create an empty deque.


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xref:bsl/deque-0c/2constructor-0d6.adoc[deque]();
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[.small]#xref:bsl/deque-0c/2constructor-0d6.adoc[_» more..._]#

Create a deque with the same value as `original`.


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xref:bsl/deque-0c/2constructor-0e.adoc[deque](xref:bsl/deque-0c.adoc[deque] const& original);
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[.small]#xref:bsl/deque-0c/2constructor-0e.adoc[_» more..._]#

Create a deque by moving from `original`.


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xref:bsl/deque-0c/2constructor-0a.adoc[deque](xref:BloombergLP/bslmf/MovableRef.adoc[BloombergLP::bslmf::MovableRef<deque>] original);
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[.small]#xref:bsl/deque-0c/2constructor-0a.adoc[_» more..._]#

Create an empty deque using `basicAllocator`.


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explicit
xref:bsl/deque-0c/2constructor-01.adoc[deque](ALLOCATOR const& basicAllocator);
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[.small]#xref:bsl/deque-0c/2constructor-01.adoc[_» more..._]#

Create a deque of `numElements` value‐initialized elements.


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explicit
xref:bsl/deque-0c/2constructor-0db.adoc[deque](
    xref:bsl/deque-0c/size_type.adoc[size_type] numElements,
    ALLOCATOR const& basicAllocator = ALLOCATOR());
----

[.small]#xref:bsl/deque-0c/2constructor-0db.adoc[_» more..._]#

Create a deque by moving from `original` using `basicAllocator`.


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xref:bsl/deque-0c/2constructor-08.adoc[deque](
    xref:BloombergLP/bslmf/MovableRef.adoc[BloombergLP::bslmf::MovableRef<deque>] original,
    ALLOCATOR const& basicAllocator);
----

[.small]#xref:bsl/deque-0c/2constructor-08.adoc[_» more..._]#

Create a deque from the elements of `values`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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xref:bsl/deque-0c/2constructor-0c.adoc[deque](
    std::initializer_list<value_type> values,
    ALLOCATOR const& basicAllocator = ALLOCATOR());
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[.small]#xref:bsl/deque-0c/2constructor-0c.adoc[_» more..._]#

Create a deque with the value of `original` using `basicAllocator`.


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xref:bsl/deque-0c/2constructor-02.adoc[deque](
    xref:bsl/deque-0c.adoc[deque] const& original,
    ALLOCATOR const& basicAllocator);
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[.small]#xref:bsl/deque-0c/2constructor-02.adoc[_» more..._]#

Create a deque of `numElements` copies of `value`.


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xref:bsl/deque-0c/2constructor-05.adoc[deque](
    xref:bsl/deque-0c/size_type.adoc[size_type] numElements,
    VALUE_TYPE const& value,
    ALLOCATOR const& basicAllocator = ALLOCATOR());
----

[.small]#xref:bsl/deque-0c/2constructor-05.adoc[_» more..._]#

Create a deque from the range `[first, last)]`.


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template<class INPUT_ITERATOR>
xref:bsl/deque-0c/2constructor-0f6d.adoc[deque](
    INPUT_ITERATOR first,
    INPUT_ITERATOR last,
    ALLOCATOR const& basicAllocator = ALLOCATOR());
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[.small]#xref:bsl/deque-0c/2constructor-0f6d.adoc[_» more..._]#

Create a deque from the elements of `range`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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template<class t_RANGE>
xref:bsl/deque-0c/2constructor-06.adoc[deque](
    std::from_range_t tag,
    t_RANGE&& range,
    ALLOCATOR const& basicAllocator = ALLOCATOR());
----

[.small]#xref:bsl/deque-0c/2constructor-06.adoc[_» more..._]#

== Parameters

[cols="1,4"]
|===
| Name| Description
| *original*
| deque to copy
| *basicAllocator*
| allocator used to supply memory
| *numElements*
| number of elements to create
| *values*
| initializer list of elements to insert
| *value*
| value used to initialize each element
| *first*
| beginning of the range to copy
| *last*
| end of the range to copy
| *tag*
| disambiguation tag for range construction
| *range*
| input range of elements to insert
|===


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