[#bsl-map-0a7-try_emplace-0de]
= xref:bsl.adoc[bsl]::xref:bsl/map-0a7.adoc[map]::try_emplace
:relfileprefix: ../../
:mrdocs:

Try to emplace an element with a movable `key`.

== Synopsis

Declared in `<bslstl_map.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class... Args>
xref:bsl/pair-0b.adoc[pair<map<KEY, VALUE, COMPARATOR, ALLOCATOR>::iterator, bool>]
try_emplace(
    xref:BloombergLP/bslmf/MovableRef.adoc[BloombergLP::bslmf::MovableRef<KEY>] key,
    Args&&... args);
----

== Description

Same as the preceding `try_emplace` overload, for movable keys.

== Return Value

pair of iterator and whether a new element was inserted

== Parameters

[cols="1,4"]
|===
| Name| Description
| *key*
| key to move into the new element
| *args*
| constructor arguments for the mapped value
|===


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