size_type bucket( const Key& key ) const; | (since C++11) |
Returns the index of the bucket for key key
. Elements (if any) with keys equivalent to key
are always found in this bucket. The returned value is valid only for instances of the container for which bucket_count()
returns the same value.
The behavior is undefined if bucket_count()
is zero.
Parameters
key | - | the value of the key to examine |
Return value
Bucket index for the key key
.
Complexity
Constant.
See also
returns the number of elements in specific bucket (public member function) |
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