Boost Unordered Translation (zh_Hans)/Doc / Modules / Root / Pages / Reference / Unordered Node Set (adoc)

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4 :8

	English `boost::unordered_node_set` uses an open-addressing layout like `boost::unordered_flat_set`, but, being node-based, it provides pointer stability and node handling functionalities. Its performance lies between those of `boost::unordered_set` and `boost::unordered_flat_set`. 274/10000 · 274
5 :12

	English As a result of its using open addressing, the interface of `boost::unordered_node_set` deviates in a number of aspects from that of `boost::unordered_set`/`std::unordered_set`: 176/10000 · 176
6 :15

	English - `begin()` is not constant-time. - There is no API for bucket handling (except `bucket_count`). - The maximum load factor of the container is managed internally and can't be set by the user. 191/10000 · 191
7 :19

	English Other than this, `boost::unordered_node_set` is mostly a drop-in replacement of standard unordered associative containers. 122/10000 · 122
8 :22

	English Synopsis 8/10000 · 8
:240 :240

	English --- 3/10000 · 3
10 :242

	English Description 11/10000 · 11
11 :244

	English Template Parameters 21/10000 · 21
12 :247

	English _Key_ 5/10000 · 5
13 :247

	English `Key` must be https://en.cppreference.com/w/cpp/named_req/Erasable[Erasable^] from the container. 97/10000 · 97
14 :247

	English _Hash_ 6/10000 · 6
15 :247

	English A unary function object type that acts a hash function for a `Key`. It takes a single argument of type `Key` and returns a value of type `std::size_t`. 151/10000 · 151
16 :247

	English _Pred_ 6/10000 · 6
17 :247

	English A binary function object that induces an equivalence relation on values of type `Key`. It takes two arguments of type `Key` and returns a value of type `bool`. 159/10000 · 159
18 :247

	English _Allocator_ 11/10000 · 11
19 :247

	English An allocator whose value type is the same as the container's value type. 72/10000 · 72
20 :260

	English Allocators using https://en.cppreference.com/w/cpp/named_req/Allocator#Fancy_pointers[fancy pointers] are supported. 116/10000 · 116
21 :264

	English The element nodes of the container are held into an internal _bucket array_. A node is inserted into a bucket determined by the hash code of its element, but if the bucket is already occupied (a _collision_), an available one in the vicinity of the original position is used. 275/10000 · 275
22 :268

	English The size of the bucket array can be automatically increased by a call to `insert`/`emplace`, or as a result of calling `rehash`/`reserve`. The _load factor_ of the container (number of elements divided by number of buckets) is never greater than `max_load_factor()`, except possibly for small sizes where the implementation may decide to allow for higher loads. 361/10000 · 361
23 :273

	English If `link:../../../../../container_hash/doc/html/hash.html#ref_hash_is_avalanchinghash[hash_is_avalanching]<Hash>::value` is `true`, the hash function is used as-is; otherwise, a bit-mixing post-processing stage is added to increase the quality of hashing at the expense of extra computational cost. 298/10000 · 298

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