[#bsl-unordered_multimap-0b0-operator_assign-0b]
= xref:bsl.adoc[bsl]::xref:bsl/unordered_multimap-0b0.adoc[unordered_multimap]::operator=
:relfileprefix: ../../
:mrdocs:

Assignment operators

== Synopses

Declared in `<bslstl_unorderedmultimap.h>`

Assign to this object the value, hash function, and key‐equivalence comparator of the specified `rhs` object, propagate to this object the allocator of `rhs` if the `ALLOCATOR` type has trait `propagate_on_container_copy_assignment`, and return a reference providing modifiable access to this object. If an exception is thrown, `*this` is left in a valid but unspecified state. This method requires that the (template parameter) types `KEY` and `VALUE` both be `copy‐assignable` and `copy‐insertable` into this unordered multimap (see {Requirements on `KEY` and `VALUE`}).


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/unordered_multimap-0b0.adoc[unordered_multimap<KEY, VALUE, HASH, EQUAL, ALLOCATOR>]&
xref:bsl/unordered_multimap-0b0/operator_assign-09.adoc[operator=](xref:bsl/unordered_multimap-0b0.adoc[unordered_multimap] const& rhs);
----

[.small]#xref:bsl/unordered_multimap-0b0/operator_assign-09.adoc[_» more..._]#

Assign to this object the value, hash function, and key‐equivalence comparator of the specified `rhs` object, propagate to this object the allocator of `rhs` if the `ALLOCATOR` type has trait `propagate_on_container_move_assignment`, and return a reference providing modifiable access to this object. The contents of `rhs` are moved (in constant time) to this unordered multimap if `get_allocator() == rhs.get_allocator()` (after accounting for the aforementioned trait); otherwise, all elements in this unordered multimap are either destroyed or move‐assigned to, and each additional element in `rhs` is move‐inserted into this unordered multimap. `rhs` is left in a valid but unspecified state, and if an exception is thrown, `*this` is left in a valid but unspecified state. This method requires that the (template parameter) types `KEY` and `VALUE` both be `move‐assignable` and `move‐insertable` into this unordered multimap (see {Requirements on `KEY` and `VALUE`}).


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/unordered_multimap-0b0.adoc[unordered_multimap<KEY, VALUE, HASH, EQUAL, ALLOCATOR>]&
xref:bsl/unordered_multimap-0b0/operator_assign-0d.adoc[operator=](xref:BloombergLP/bslmf/MovableRef.adoc[BloombergLP::bslmf::MovableRef<unordered_multimap>] rhs) noexcept(/* see-below */);
----

[.small]#xref:bsl/unordered_multimap-0b0/operator_assign-0d.adoc[_» more..._]#

Assign to this object the value resulting from first clearing this unordered multimap and then inserting each `value_type` object in the specified `values` initializer list, and return a reference providing modifiable access to this object. This method requires that the (template parameter) types `KEY` and `VALUE` both be `copy‐insertable` into this unordered multimap (see {Requirements on `KEY` and `VALUE`}).


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/unordered_multimap-0b0.adoc[unordered_multimap<KEY, VALUE, HASH, EQUAL, ALLOCATOR>]&
xref:bsl/unordered_multimap-0b0/operator_assign-00.adoc[operator=](std::initializer_list<value_type> values);
----

[.small]#xref:bsl/unordered_multimap-0b0/operator_assign-00.adoc[_» more..._]#


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