Boost Unordered Translation (zh_Hans)/Doc / Modules / Root / Pages / Reference / Concurrent Flat Set (adoc) — Chinese (Simplified Han script) @ Boost-Weblate

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.

163 :727
	English If an element `x` exists with key equivalent to `k`, invokes `f` with a const reference to `x`.
	Chinese (Simplified Han script) 若存在键与 `k` 等价的元素 `x`，则以指向 `x` 的常量引用调用函数 `f`。 43/950 · 95 Needs editing
164 :730
	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.
	Chinese (Simplified Han script) 返回值：;; 访问到的元素数量（0 或 1）。注意：;; 仅当 `Hash::is_transparent` 与 `Pred::is_transparent` 为合法成员别名时，`template<class k,="" class="" f="">` 重载版本才会参与重载决议。库假定 `Hash` 可同时接收 `K` 与 `Key` 类型调用，且 `Pred` 是透明的。这支持异构查找，避免了实例化 `Key` 类型对象的开销。</class> 226/4270 · 427 Needs editing
:733 :733
	English ---
	Chinese (Simplified Han script) --- 3/100 · 3 Needs editing
166 :735
	English Bulk visit
	Chinese (Simplified Han script) 批量访问 4/100 · 10 Needs editing
167 :737
	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; ```
	Chinese (Simplified Han script) ```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; ```</class></class></class> 353/3020 · 302 Needs editing
168 :746
	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`.
	Chinese (Simplified Han script) 对范围 `[first, last)` 中的每个元素 `k`，若容器中存在键与 `k` 等价的元素 `x`，则以指向 `x` 的常量引用调用函数 `f`。 77/1670 · 167 Needs editing
169 :750
	English Although functionally equivalent to individually invoking xref:concurrent_flat_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_flat_set_constants[`bulk_visit_size`] to enjoy a performance gain: beyond this size, performance is not expected to increase further.
	Chinese (Simplified Han script) 尽管功能上等同于对每个键单独调用 `[c]visit`，但得益于内部的流式优化，批量访问通常性能更高。建议当 `std::distance(first,last)` 至少达到 `bulk_visit_size` 时使用批量访问以获得性能提升；超过该大小后，性能不会进一步提升。 138/4140 · 414 Needs editing
170 :759
	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.
	Chinese (Simplified Han script) 前置要求：;; `FwdIterator` 是一个传统前向迭代器（C++11 至 C++17），或满足 `std::forward_iterator` 要求（C++20 及更高版本）。对于 `K = std::iterator_traits<fwditerator>::value_type`，要么 `K` 是 `key_type`，要么 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员别名。在后一种情况下，库假定 `Hash` 可同时接收 `K` 与 `Key` 类型调用，且 `Pred` 是透明的。这支持异构查找，避免了实例化 `Key` 类型对象的开销。返回值：;; 访问到的元素数量。</fwditerator> 345/6900 · 690 Needs editing
:768 :768
	English ---
	Chinese (Simplified Han script) --- 3/100 · 3 Needs editing
172 :770
	English [c]visit_all
	Chinese (Simplified Han script) [c]visit_all 12/120 · 12 Needs editing
173 :772
	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; ```
	Chinese (Simplified Han script) ```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; ```</class></class></class> 179/1460 · 146 Needs editing
174 :778
	English Successively invokes `f` with const references to each of the elements in the table.
	Chinese (Simplified Han script) 依次以指向哈希表中每个元素的常量引用调用函数 `f`。 27/840 · 84 Needs editing
175 :781
	English Returns:;; The number of elements visited.
	Chinese (Simplified Han script) 返回值：;; 访问到的元素总数。 16/420 · 42 Needs editing
:783 :783
	English ---
	Chinese (Simplified Han script) --- 3/100 · 3 Needs editing
177 :785
	English Parallel [c]visit_all
	Chinese (Simplified Han script) 并行 [c]visit_all 15/210 · 21 Needs editing
178 :787
	English ```c++ template<class ExecutionPolicy, class F> void visit_all(ExecutionPolicy&& policy, F f); template<class ExecutionPolicy, class F> void visit_all(ExecutionPolicy&& policy, F f) const; template<class ExecutionPolicy, class F> void cvisit_all(ExecutionPolicy&& policy, F f) const; ```
	Chinese (Simplified Han script) ```c++ template<class executionpolicy,="" class="" f=""> void visit_all(ExecutionPolicy&& policy, F f); template<class executionpolicy,="" class="" f=""> void visit_all(ExecutionPolicy&& policy, F f) const; template<class executionpolicy,="" class="" f=""> void cvisit_all(ExecutionPolicy&& policy, F f) const; ```</class></class></class> 362/2870 · 287 Needs editing
179 :793
	English Invokes `f` with const references to each of the elements in the table. Execution is parallelized according to the semantics of the execution policy specified.
	Chinese (Simplified Han script) 以指向哈希表中每个元素的常量引用调用函数 `f`。执行过程会根据指定执行策略的语义进行并行化。 47/1590 · 159 Needs editing
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	English Throws:;; Depending on the exception handling mechanism of the execution policy used, may call `std::terminate` if an exception is thrown within `f`. Notes:;; Only available in compilers supporting C++17 parallel algorithms. + + These overloads only participate in overload resolution if `std::is_execution_policy_v<std::remove_cvref_t<ExecutionPolicy>>` is `true`. + + Unsequenced execution policies are not allowed.
	Chinese (Simplified Han script) 抛出异常：;; 根据所使用执行策略的异常处理机制，若 `f` 内部抛出异常，则可能调用 `std::terminate`。注意：;; 仅在支持 C++17 并行算法的编译器中可用。仅当 `std::is_execution_policy_v<std::remove_cvref_t<executionpolicy>>` 为 `true` 时，这些重载版本才会参与重载决议。不允许使用无序执行策略。</std::remove_cvref_t<executionpolicy> 242/4170 · 417 Needs editing
:804 :804
	English ---
	Chinese (Simplified Han script) --- 3/100 · 3 Needs editing
182 :806
	English [c]visit_while
	Chinese (Simplified Han script) [c]visit_while 14/140 · 14 Needs editing

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