[#bsl-multimap-0ae-emplace_hint]
= xref:bsl.adoc[bsl]::xref:bsl/multimap-0ae.adoc[multimap]::emplace_hint
:relfileprefix: ../../
:mrdocs:

Insert into this multimap a newly‐created `value_type` object, constructed by forwarding `get_allocator()` (if required) and the specified (variable number of) `args` to the corresponding constructor of `value_type` (in amortized constant time if the specified `hint` is a valid immediate successor to the `value_type` object constructed from `args`). Return an iterator referring to the newly created and inserted object in this multimap. If `hint` is not a valid immediate successor to the `value_type` object implied by `args`, this operation has `O[log(N)]` complexity where `N` is the size of this multimap. This method requires that the (template parameter) types `KEY` and `VALUE` both be `emplace‐constructible` from `args` (see {Requirements on `KEY` and `VALUE`}). The behavior is undefined unless `hint` is an iterator in the range `[begin() .. end()]` (both endpoints included).

== Synopsis

Declared in `<bslstl_multimap.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class... Args>
xref:bsl/multimap-0ae/iterator.adoc[multimap<KEY, VALUE, COMPARATOR, ALLOCATOR>::iterator]
emplace_hint(
    xref:bsl/multimap-0ae/const_iterator.adoc[const_iterator] hint,
    Args&&... args);
----


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