# std::unordered_map<Key,T,Hash,KeyEqual,Allocator>::bucket_size

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< cpp‎ | container‎ | unordered map

size_type bucket_size( size_type n ) const; |  | (since C++11)

Returns the number of elements in the bucket with index `n`.

### Parameters

n | - | the index of the bucket to examine

### Return value

The number of elements in the bucket `n`.

### Complexity

Linear in the size of the bucket `n`.

### See also

bucket_count | returns the number of buckets (public member function)

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