[#bsl-deque-0c-insert-08]
= xref:bsl.adoc[bsl]::xref:bsl/deque-0c.adoc[deque]::insert
:relfileprefix: ../../
:mrdocs:

Insert a copy of `value` before `position`.

== Synopsis

Declared in `<bslstl_deque.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/deque-0c/iterator-02.adoc[deque<VALUE_TYPE, ALLOCATOR>::iterator]
insert(
    xref:bsl/deque-0c/const_iterator.adoc[const_iterator] position,
    VALUE_TYPE const& value);
----

== Description

Insert at the specified `position` in this deque a copy of the specified `value`, and return an iterator providing modifiable access to the newly inserted element. This method offers full guarantee of rollback in case an exception is thrown other than by the `VALUE_TYPE` copy constructor or assignment operator. This method requires that the (template parameter) `VALUE_TYPE` be `copy‐insertable` into this deque (see {Requirements on `VALUE_TYPE`}). The behavior is undefined unless `position` is an iterator in the range `[cbegin() .. cend()]` (both endpoints included).

== Return Value

iterator to the newly inserted element

== Parameters

[cols="1,4"]
|===
| Name| Description
| *position*
| iterator before which to insert
| *value*
| value to copy‐insert
|===


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