迭代器失效可以分成两种情况,如序列容器的迭代器失效和关联容器的迭代器失效。 序列容器迭代器失效,以vector为例。看如下代码: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 int main () { std::vector<int> myvector (5); // 5 default-constructed ints int i=0; std::vector<int>::reverse_it...
publicinterfaceSpliterator<T>{// 顺序处理每一个元素,参数是处理的动作,如果还有元素需要处理则返回true,否则返回falsebooleantryAdvance(Consumer<?superT>action);// 依次处理剩下的元素defaultvoidforEachRemaining(Consumer<?superT>action){do{}while(tryAdvance(action));}// 最重要的方法,用来分割集合Spliterato...
Back inserter back_inserter_iterator push_back(value) back_inserter(cont) Front inserter front_insert_iterator push_front(value) front_inserter(cont) General inserter insert_iterator insert(pos, value) inserter(cont, pos) 4.3 Stream(流)迭代器 Stream迭代器是一种迭代器配接器,通过它,你可以把stream...
either pinned in block cache, or in the heap if block cache is not set. Please note that although normally blocks are small, in some extreme cases, a single block can be quite large, if the value size is very large.
{typedefrandom_access_iterator_tag iterator_category;typedef_Tp value_type;typedefptrdiff_tdifference_type;typedefconst_Tp* pointer;typedefconst_Tp& reference; };#endif 通过iterator_traits萃取出迭代器型别的方式如下: template<typename_Iter>inline_GLIBCXX_CONSTEXPRtypenameiterator_traits<_Iter>::iterator_...
// ostream_iterator_traits_type.cpp// compile with: /EHsc#include<iterator>#include<vector>#include<iostream>intmain( ){usingnamespacestd;// The following not OK, but are just the default values:typedefostream_iterator<int>::char_type CHT1;typedefostream_iterator<int>::traits_type CHTR1;/...
Return the sum of a 'start' value (default: 0) plus an iterable of numbers. When the iterable is empty, return the start value. This function is intended specifically for use with numeric values and may reject non-numeric types.(END) ...
//存储ArrayList集合的元素，集合的长度就是这个数组的长度//1.当elementData == DEFAULTCAPACITY_EMPTY_...
publicinterfaceSpliterator<T>{// 顺序处理每一个元素,参数是处理的动作,如果还有元素需要处理则返回true,否则返回falsebooleantryAdvance(Consumer<?superT>action);// 依次处理剩下的元素defaultvoidforEachRemaining(Consumer<?superT>action){do{}while(tryAdvance(action));}// 最重要的方法,用来分割集合Spliterato...
T 必须满足可默认构造 (DefaultConstructible) 、可复制构造 (CopyConstructible) 和可复制赋值 (CopyAssignable) 要求。 成员类型成员类型 定义 iterator_category std::input_iterator_tag value_type T difference_type Distance pointer const T* reference const T& char_type CharT traits_type Traits ...