Boost Unordered Translation (zh_Hans)/Doc / Modules / Root / Pages / Reference / Concurrent Flat Map (adoc) — Chinese (Simplified Han script) @ Boost-Weblate: ```c++ template<class InputIterator> size_type insert(InputIterator first, InputIterator last); ```

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Key	English	Chinese (Simplified Han script)
	```c++ template<class... Args> bool emplace(Args&&... args); ```	```c++ template<class... args=""> bool emplace(Args&&... args); ```</class...>
	Inserts an object, constructed with the arguments `args`, in the table if and only if there is no element in the table with an equivalent key.	当且仅当容器中不存在等价键的元素时，才会使用参数 args 构造对象并插入到容器中。
	Requires:;; `value_type` is constructible from `args`. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued. + + If `args...` is of the form `k,v`, it delays constructing the whole object until it is certain that an element should be inserted, using only the `k` argument to check.	要求：`value_type` 可从 `args` 构造。返回：若执行了插入则返回 `true`。并发：在 `*this` 的 rehash 操作上阻塞。注意：如果执行了 rehash，则指向元素的指针和引用会失效。+ +若 `args...` 的形式为 `k,v`，则仅在确定应插入元素时才构造整个对象，检查时仅使用 `k` 参数。
:963	---	---
	Copy Insert	复制插入
	```c++ bool insert(const value_type& obj); bool insert(const init_type& obj); ```	```c++ bool insert(const value_type& obj); bool insert(const init_type& obj); ```
:971	Inserts `obj` in the table if and only if there is no element in the table with an equivalent key.	当且仅当容器中不存在等价键的元素时，才将对象 obj 插入到容器中。
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/CopyInsertable[CopyInsertable^]. Returns:;; `true` if an insert took place. + Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued. + + A call of the form `insert(x)`, where `x` is equally convertible to both `const value_type&` and `const init_type&`, is not ambiguous and selects the `init_type` overload.	要求：`value_type` 需满足 https://en.cppreference.com/w/cpp/named_req/CopyInsertable[可复制插入^] 要求。返回：若执行了插入则返回 `true`。并发：在 `*this` 的 rehash 操作上阻塞。注意：如果执行了 rehash，则指向元素的指针和引用会失效。+ +形式为 `insert(x)` 的调用（其中 `x` 可同等转换为 `const value_type&` 和 `const init_type&`）不会产生歧义，并且会选择 `init_type` 重载。
:981	---	---
	Move Insert	移动插入
	```c++ bool insert(value_type&& obj); bool insert(init_type&& obj); ```	```c++ bool insert(value_type&& obj); bool insert(init_type&& obj); ```
:989	Inserts `obj` in the table if and only if there is no element in the table with an equivalent key.	当且仅当容器中无等价键的元素时，将对象 obj 插入容器。
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^]. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued. + + A call of the form `insert(x)`, where `x` is equally convertible to both `value_type&&` and `init_type&&`, is not ambiguous and selects the `init_type` overload.	要求：`value_type` 需满足 https://en.cppreference.com/w/cpp/named_req/MoveInsertable[可移动插入^] 要求。返回：若执行了插入则返回 `true`。并发：在 `*this` 的 rehash 操作上阻塞。注意：如果执行了 rehash，则指向元素的指针和引用会失效。+ +形式为 `insert(x)` 的调用（其中 `x` 可同等转换为 `value_type&&` 和 `init_type&&`）不会产生歧义，并且会选择 `init_type` 重载。
:999	---	---
	Insert Iterator Range	迭代器范围插入
	```c++ template<class InputIterator> size_type insert(InputIterator first, InputIterator last); ```	```c++ template<class inputiterator=""> size_type insert(InputIterator first, InputIterator last); ```</class>
:1006	Equivalent to [listing,subs="+macros,+quotes"]	等效于 [listing,subs="+macros,+quotes"]
:1013	Returns:;; The number of elements inserted.	返回值：成功插入的元素数量。
:1015	---	---
	Insert Initializer List	初始化列表插入
	```c++ size_type insert(std::initializer_list<value_type> il); ```	```c++ size_type insert(std::initializer_list<value_type> il); ```</value_type>
:1022	Equivalent to [listing,subs="+macros,+quotes"]	等效于 [listing,subs="+macros,+quotes"]
:1029	Returns:;; The number of elements inserted.	返回值：插入的元素个数。
:1031	---	---
	emplace_or_[c]visit	emplace_or_[c]visit
	```c++ template<class... Args, class F> bool emplace_or_visit(Args&&... args, F&& f); template<class... Args, class F> bool emplace_or_cvisit(Args&&... args, F&& f); ```	```c++ template<class... args,="" class="" f=""> bool emplace_or_visit(Args&&... args, F&& f); template<class... args,="" class="" f=""> bool emplace_or_cvisit(Args&&... args, F&& f); ```</class...></class...>
	Inserts an object, constructed with the arguments `args`, in the table if there is no element in the table with an equivalent key. Otherwise, invokes `f` with a reference to the equivalent element; such reference is const iff `emplace_or_cvisit` is used.	若容器中无等价键的元素，则使用参数 args 构造对象并插入容器；否则，将等价元素的引用传递给函数 f 并调用 —— 若使用的是 emplace_or_cvisit，则该引用为常量引用。
	Requires:;; `value_type` is constructible from `args`. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued. + + The interface is exposition only, as C++ does not allow to declare a parameter `f` after a variadic parameter pack.	要求：`value_type` 可从 `args` 构造。返回：若执行了插入则返回 `true`。并发：在 `*this` 的 rehash 操作上阻塞。注意：如果执行了 rehash，则指向元素的指针和引用会失效。+ +该接口仅为展示说明，因为 C++ 不允许在变参参数包之后声明参数 `f`。
:1050	---	---
	Copy insert_or_[c]visit	Copy insert_or_[c]visit
	```c++ template<class F> bool insert_or_visit(const value_type& obj, F f); template<class F> bool insert_or_cvisit(const value_type& obj, F f); template<class F> bool insert_or_visit(const init_type& obj, F f); template<class F> bool insert_or_cvisit(const init_type& obj, F f); ```	```c++ template<class f=""> bool insert_or_visit(const value_type& obj, F f); template<class f=""> bool insert_or_cvisit(const value_type& obj, F f); template<class f=""> bool insert_or_visit(const init_type& obj, F f); template<class f=""> bool insert_or_cvisit(const init_type& obj, F f); ```</class></class></class></class>

	English	Chinese (Simplified Han script)	Actions
	Returns:;; The number of elements visited.	返回值：访问到的元素数量。
	Parallel [c]visit_all	并行 [c]visit_all
	```c++ bool insert(const value_type& obj); bool insert(const init_type& obj); ```	```c++ bool insert(const value_type& obj); bool insert(const init_type& obj); ```
	```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; ```	```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>
	Invokes `f` with references to each of the elements in the table. Such references are const iff `*this` is const. Execution is parallelized according to the semantics of the execution policy specified.	以表中每个元素的引用调用函数 f。当且仅当当前容器 *this 为常量（const）时，该引用为常量引用。执行过程将根据指定的执行策略语义进行并行化。
	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.	抛出异常：根据所使用执行策略的异常处理机制，如果 f 内部抛出异常，则可能会调用 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，这些重载版本才参与重载决议。不允许使用无序执行策略。</std::remove_cvref_t<executionpolicy>
	[c]visit_while	[c]visit_while
	Successively invokes `f` with references to each of the elements in the table until `f` returns `false` or all the elements are visited. Such references to the elements are const iff `*this` is const.	依次以表中每个元素的引用调用函数 f，直到 f 返回 false 或遍历完所有元素。当且仅当当前容器 *this 为常量（const）时，该元素引用为常量引用。
	Parallel [c]visit_while	并行 [c]visit_while
	```c++ template<class ExecutionPolicy, class F> bool visit_while(ExecutionPolicy&& policy, F f); template<class ExecutionPolicy, class F> bool visit_while(ExecutionPolicy&& policy, F f) const; template<class ExecutionPolicy, class F> bool cvisit_while(ExecutionPolicy&& policy, F f) const; ```	```c++ template<class executionpolicy,="" class="" f=""> bool visit_while(ExecutionPolicy&& policy, F f); template<class executionpolicy,="" class="" f=""> bool visit_while(ExecutionPolicy&& policy, F f) const; template<class executionpolicy,="" class="" f=""> bool cvisit_while(ExecutionPolicy&& policy, F f) const; ```</class></class></class>
	Returns:;; `false` iff `f` ever returns `false`. 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. + + Parallelization implies that execution does not necessary finish as soon as `f` returns `false`, and as a result `f` may be invoked with further elements for which the return value is also `false`.	返回值：当且仅当 f 曾返回 false 时，整体返回 false。抛出异常：根据所使用执行策略的异常处理机制，如果 f 内部抛出异常，则可能会调用 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，这些重载版本才参与重载决议。不允许使用无序执行策略。并行化意味着：即使 f 已返回 false，执行流程也不一定会立即终止；因此，f 可能还会被继续调用以处理后续元素，且这些调用同样可能返回 false。</std::remove_cvref_t<executionpolicy>
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/CopyInsertable[CopyInsertable^]. Returns:;; `true` if an insert took place. + Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued. + + A call of the form `insert(x)`, where `x` is equally convertible to both `const value_type&` and `const init_type&`, is not ambiguous and selects the `init_type` overload.	要求：`value_type` 需满足 https://en.cppreference.com/w/cpp/named_req/CopyInsertable[可复制插入^] 要求。返回：若执行了插入则返回 `true`。并发：在 `*this` 的 rehash 操作上阻塞。注意：如果执行了 rehash，则指向元素的指针和引用会失效。+ +形式为 `insert(x)` 的调用（其中 `x` 可同等转换为 `const value_type&` 和 `const init_type&`）不会产生歧义，并且会选择 `init_type` 重载。
	Move Insert	移动插入
	```c++ bool insert(value_type&& obj); bool insert(init_type&& obj); ```	```c++ bool insert(value_type&& obj); bool insert(init_type&& obj); ```
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^]. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued. + + A call of the form `insert(x)`, where `x` is equally convertible to both `value_type&&` and `init_type&&`, is not ambiguous and selects the `init_type` overload.	要求：`value_type` 需满足 https://en.cppreference.com/w/cpp/named_req/MoveInsertable[可移动插入^] 要求。返回：若执行了插入则返回 `true`。并发：在 `*this` 的 rehash 操作上阻塞。注意：如果执行了 rehash，则指向元素的指针和引用会失效。+ +形式为 `insert(x)` 的调用（其中 `x` 可同等转换为 `value_type&&` 和 `init_type&&`）不会产生歧义，并且会选择 `init_type` 重载。
	```c++ template<class InputIterator> size_type insert(InputIterator first, InputIterator last); ```	```c++ template<class inputiterator=""> size_type insert(InputIterator first, InputIterator last); ```</class>
	```c++ template<class... Args, class F> bool emplace_or_visit(Args&&... args, F&& f); template<class... Args, class F> bool emplace_or_cvisit(Args&&... args, F&& f); ```	```c++ template<class... args,="" class="" f=""> bool emplace_or_visit(Args&&... args, F&& f); template<class... args,="" class="" f=""> bool emplace_or_cvisit(Args&&... args, F&& f); ```</class...></class...>
	Inserts an object, constructed with the arguments `args`, in the table if there is no element in the table with an equivalent key. Otherwise, invokes `f` with a reference to the equivalent element; such reference is const iff `emplace_or_cvisit` is used.	若容器中无等价键的元素，则使用参数 args 构造对象并插入容器；否则，将等价元素的引用传递给函数 f 并调用 —— 若使用的是 emplace_or_cvisit，则该引用为常量引用。
	Requires:;; `value_type` is constructible from `args`. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued. + + The interface is exposition only, as C++ does not allow to declare a parameter `f` after a variadic parameter pack.	要求：`value_type` 可从 `args` 构造。返回：若执行了插入则返回 `true`。并发：在 `*this` 的 rehash 操作上阻塞。注意：如果执行了 rehash，则指向元素的指针和引用会失效。+ +该接口仅为展示说明，因为 C++ 不允许在变参参数包之后声明参数 `f`。
	```c++ template<class F> bool insert_or_visit(const value_type& obj, F f); template<class F> bool insert_or_cvisit(const value_type& obj, F f); template<class F> bool insert_or_visit(const init_type& obj, F f); template<class F> bool insert_or_cvisit(const init_type& obj, F f); ```	```c++ template<class f=""> bool insert_or_visit(const value_type& obj, F f); template<class f=""> bool insert_or_cvisit(const value_type& obj, F f); template<class f=""> bool insert_or_visit(const init_type& obj, F f); template<class f=""> bool insert_or_cvisit(const init_type& obj, F f); ```</class></class></class></class>
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/CopyInsertable[CopyInsertable^]. Returns:;; `true` if an insert took place. + Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued. + + In a call of the form `insert_or_[c]visit(obj, f)`, the overloads accepting a `const value_type&` argument participate in overload resolution only if `std::remove_cv<std::remove_reference<decltype(obj)>::type>::type` is `value_type`.	要求：`value_type` 需满足 https://en.cppreference.com/w/cpp/named_req/CopyInsertable[可复制插入^] 要求。返回：若执行了插入则返回 `true`。并发：在 `*this` 的 rehash 操作上阻塞。注意：如果执行了 rehash，则指向元素的指针和引用会失效。+ +在形式为 `insert_or_[c]visit(obj, f)` 的调用中，接受 `const value_type&` 参数的重载仅当 `std::remove_cv<std::remove_reference<decltype(obj)>::type>::type` 为 `value_type` 时才参与重载决议。</std::remove_reference<decltype(obj)>
	Move insert_or_[c]visit	Move insert_or_[c]visit
	```c++ template<class F> bool insert_or_visit(value_type&& obj, F f); template<class F> bool insert_or_cvisit(value_type&& obj, F f); template<class F> bool insert_or_visit(init_type&& obj, F f); template<class F> bool insert_or_cvisit(init_type&& obj, F f); ```	```c++ template<class f=""> bool insert_or_visit(value_type&& obj, F f); template<class f=""> bool insert_or_cvisit(value_type&& obj, F f); template<class f=""> bool insert_or_visit(init_type&& obj, F f); template<class f=""> bool insert_or_cvisit(init_type&& obj, F f); ```</class></class></class></class>
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^]. Returns:;; `true` if an insert took place. + Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued. + + In a call of the form `insert_or_[c]visit(obj, f)`, the overloads accepting a `value_type&&` argument participate in overload resolution only if `std::remove_reference<decltype(obj)>::type` is `value_type`.	要求：value_type 满足 https://en.cppreference.com/w/cpp/named_req/MoveInsertable[可移动插入] 要求。返回值：插入成功则返回 true。并发：在当前对象 *this 执行重哈希期间阻塞。说明：触发重哈希时，会使指向元素的指针和引用失效。调用形式为 insert_or_[c]visit(obj, f) 时，仅当 std::remove_reference<decltype(obj)>::type 类型为 value_type，接收 value_type&& 参数的重载函数才会参与重载决议。</decltype(obj)>
	Insert Iterator Range or Visit	迭代器范围插入或访问
	Insert Initializer List or Visit	初始化列表插入或访问
	```c++ template<class F> size_type insert_or_visit(std::initializer_list<value_type> il, F f); template<class F> size_type insert_or_cvisit(std::initializer_list<value_type> il, F f); ```	```c++ template<class f=""> size_type insert_or_visit(std::initializer_list<value_type> il, F f); template<class f=""> size_type insert_or_cvisit(std::initializer_list<value_type> il, F f); ```</value_type></class></value_type></class>
	Inserts an object, constructed with the arguments `args`, in the table if there is no element in the table with an equivalent key, and then invokes `f1` with a non-const reference to the newly created element. Otherwise, invokes `f2` with a reference to the equivalent element; such reference is const iff `emplace_and_cvisit` is used.	若容器中无等价键的元素，则使用参数args构造对象并插入容器，随后以新创建元素的非常量引用调用f1；否则，以等价元素的引用调用f2；若使用emplace_and_cvisit，则该引用为常量引用。
	Requires:;; `value_type` is constructible from `args`. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued. + + The interface is exposition only, as C++ does not allow to declare parameters `f1` and `f2` after a variadic parameter pack.	要求：`value_type` 可从 `args` 构造。返回：若执行了插入则返回 `true`。并发：在 `*this` 的 rehash 操作上阻塞。注意：如果执行了 rehash，则指向元素的指针和引用会失效。+ +该接口仅为展示说明，因为 C++ 不允许在变参参数包之后声明参数 `f1` 和 `f2`。
	Copy insert_and_[c]visit	复制 insert_and_[c]visit

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