[#BloombergLP-bdlc-FlatHashMap-insert_or_assign-06]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlc.adoc[bdlc]::xref:BloombergLP/bdlc/FlatHashMap.adoc[FlatHashMap]::insert_or_assign
:relfileprefix: ../../../
:mrdocs:

If this map contains an entry with a key equivalent to the specified `key`, assign the specified `obj` to the `mapped_type` of that entry. Otherwise, insert a new entry into the map. Return an iterator to the inserted or updated entry. `obj` is left in a (valid) unspecified state.

== Synopsis

Declared in `<bdlc_flathashmap.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class LOOKUP_KEY,
    class MAPPED>
xref:BloombergLP/bdlc/FlatHashMap/iterator.adoc[iterator]
insert_or_assign(
    xref:BloombergLP/bdlc/FlatHashMap/const_iterator.adoc[const_iterator],
    LOOKUP_KEY&& key,
    MAPPED&& obj)
requires BloombergLP::bslmf::IsTransparentPredicate<HASH, LOOKUP_KEY>::value
         && BloombergLP::bslmf::IsTransparentPredicate<EQUAL,LOOKUP_KEY>::value;
----


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