[#bsl-operator_eq-024]
= xref:bsl.adoc[bsl]::operator==
:relfileprefix: ../
:mrdocs:

Return `true` if the specified `lhs` and `rhs` objects have the same value, and `false` otherwise. Two `unordered_map` objects have the same value if they have the same number of key‐value pairs, and for each key‐value pair that is contained in `lhs` there is a key‐value pair contained in `rhs` having the same value, and vice versa. Note that this method requires that the (template parameter) types `KEY` and `VALUE` both be `equality‐comparable` (see {Requirements on `value_type`}).

== Synopsis

Declared in `<bslstl_unorderedmap.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class KEY,
    class VALUE,
    class HASH,
    class EQUAL,
    class ALLOCATOR>
bool
operator==(
    xref:bsl/unordered_map-02b.adoc[unordered_map<KEY, VALUE, HASH, EQUAL, ALLOCATOR>] const& lhs,
    xref:bsl/unordered_map-02b.adoc[unordered_map<KEY, VALUE, HASH, EQUAL, ALLOCATOR>] const& rhs);
----


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