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

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164 :759

	English Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/CopyInsertable[CopyInsertable^] Concurrency:;; Blocking on `*this`. 139/10000 · 139
:762 :762

	English --- 3/10000 · 3
166 :764

	English Visitation 10/10000 · 10
167 :766

	English [c]visit 8/10000 · 8
168 :768

	English ```c++ template<class F> size_t visit(const key_type& k, F f); template<class F> size_t visit(const key_type& k, F f) const; template<class F> size_t cvisit(const key_type& k, F f) const; template<class K, class F> size_t visit(const K& k, F f); template<class K, class F> size_t visit(const K& k, F f) const; template<class K, class F> size_t cvisit(const K& k, F f) const; ``` 378/10000 · 378
169 :777

	English If an element `x` exists with key equivalent to `k`, invokes `f` with a const reference to `x`. 95/10000 · 95
170 :780

	English Returns:;; The number of elements visited (0 or 1). Notes:;; The `template<class K, class F>` overloads only participate 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. 427/10000 · 427
:783 :783

	English --- 3/10000 · 3
172 :785

	English Bulk visit 10/10000 · 10
173 :787

	English ```c++ template<class FwdIterator, class F> size_t visit(FwdIterator first, FwdIterator last, F f); template<class FwdIterator, class F> size_t visit(FwdIterator first, FwdIterator last, F f) const; template<class FwdIterator, class F> size_t cvisit(FwdIterator first, FwdIterator last, F f) const; ``` 302/10000 · 302
174 :796

	English For each element `k` in the range [`first`, `last`), if there is an element `x` in the container with key equivalent to `k`, invokes `f` with a const reference to `x`. 167/10000 · 167
175 :800

	English Although functionally equivalent to individually invoking xref:concurrent_node_set_cvisit[`[c\]visit`] for each key, bulk visitation performs generally faster due to internal streamlining optimizations. It is advisable that `std::distance(first,last)` be at least xref:#concurrent_node_set_constants[`bulk_visit_size`] to enjoy a performance gain: beyond this size, performance is not expected to increase further. 414/10000 · 414
176 :809

	English Requires:;; `FwdIterator` is a https://en.cppreference.com/w/cpp/named_req/ForwardIterator[LegacyForwardIterator^] ({cpp}11 to {cpp}17), or satisfies https://en.cppreference.com/w/cpp/iterator/forward_iterator[std::forward_iterator^] ({cpp}20 and later). For `K` = `std::iterator_traits<FwdIterator>::value_type`, either `K` is `key_type` or else `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs. In the latter case, 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. Returns:;; The number of elements visited. 690/10000 · 690
:818 :818

	English --- 3/10000 · 3
178 :820

	English [c]visit_all 12/10000 · 12
179 :822

	English ```c++ template<class F> size_t visit_all(F f); template<class F> size_t visit_all(F f) const; template<class F> size_t cvisit_all(F f) const; ``` 146/10000 · 146
180 :828

	English Successively invokes `f` with const references to each of the elements in the table. 84/10000 · 84
181 :831

	English Returns:;; The number of elements visited. 42/10000 · 42
:833 :833

	English --- 3/10000 · 3
183 :835

	English Parallel [c]visit_all 21/10000 · 21

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