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346 :1348

	English Set Operations 14/10000 · 14
347 :1350

	English count 5/10000 · 5
348 :1351

	English ```c++ size_type count(const key_type& k) const; template<class K> size_type count(const K& k) const; ``` 117/10000 · 117
349 :1358

	English Returns:;; The number of elements with key equivalent to `k` (0 or 1). Notes:;; The `template<class K>` overload only participates in overload resolution if `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs. The library assumes that `Hash` is callable with both `K` and `Key` and that `Pred` is transparent. This enables heterogeneous lookup which avoids the cost of instantiating an instance of the `Key` type. + + In the presence of concurrent insertion operations, the value returned may not accurately reflect the true state of the table right after execution. 590/10000 · 590
:1364 :1364

	English --- 3/10000 · 3
351 :1366

	English contains 8/10000 · 8
352 :1367

	English ```c++ bool contains(const key_type& k) const; template<class K> bool contains(const K& k) const; ``` 123/10000 · 123
353 :1374

	English Returns:;; A boolean indicating whether or not there is an element with key equal to `k` in the table. Notes:;; The `template<class K>` overload only participates in overload resolution if `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs. The library assumes that `Hash` is callable with both `K` and `Key` and that `Pred` is transparent. This enables heterogeneous lookup which avoids the cost of instantiating an instance of the `Key` type. + + In the presence of concurrent insertion operations, the value returned may not accurately reflect the true state of the table right after execution. 623/10000 · 623
:1380 :1380

	English --- 3/10000 · 3
355 :1381

	English Bucket Interface 16/10000 · 16
356 :1383

	English bucket_count 12/10000 · 12
357 :1384

	English ```c++ size_type bucket_count() const noexcept; ``` 51/10000 · 51
358 :1389

	English Returns:;; The size of the bucket array. 40/10000 · 40
:1391 :1391

	English --- 3/10000 · 3
360 :1393

	English Hash Policy 11/10000 · 11
361 :1395

	English load_factor 11/10000 · 11
362 :1396

	English ```c++ float load_factor() const noexcept; ``` 46/10000 · 46
363 :1401

	English Returns:;; `static_cast<float>(size())/static_cast<float>(bucket_count())`, or `0` if `bucket_count() == 0`. 108/10000 · 108
:1403 :1403

	English --- 3/10000 · 3
365 :1405

	English max_load_factor 15/10000 · 15

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