1) 正向迭代器定义方法:容器类名::iterator 迭代器名; 2) 常量正向迭代器定义方法:容器类名::const_iterator 迭代器名; 3) 反向迭代器,定义方法如下:容器类名::reverse_iterator 迭代器名; 4) 常量反向迭代器,定义方法如下:容器类名::const_reverse_iterator 迭代器名; 下面就用vector容器来进行举例。 vect...
C/CPP const关键字:再了解一下CPP字符串常量以及普通const常量的内存布局,还有与volatile一起使用的效果,然后可以看出C里的const与CPP里的const还是有一定差别的...C/CPP static关键字:了解一下ELF(参见《深入理解计算机系统》第七章:链接),然后从符号表的角度去分析static关键字的作用,注意:CPP不像python等解释性...
* 直接用迭代器,注意const_iterator还是iterator * */ void search2() { vector<int> demo{1, 2}; // 如果参数为const vector<int> 需要用const_iterator // vector<int>::const_iterator iter=v.begin(); for (vector<int>::iterator it = demo.begin(); it != demo.end(); ++it) { cout <...
const_iterator end()const{return&objects[size()]; }staticconstintspare_capacity =16;private:intthesize;intthecapacity;object*objects; };
Iterator(int x) : x_(x) {} int operator*() const { return x_; } Iterator& operator++() { ++x_; return *this; } bool operator==(const Iterator& other) const { return x_ == other.x_; } bool operator!=(const Iterator& other) const { return !...
如果迭代器落入这些类别之一且同时满足老式输出迭代器(LegacyOutputIterator)的要求,那么它被称为可变 迭代器并且同时 支持输入和输出。非可变迭代器被称为常 迭代器。 提供的所有满足迭代器类别要求的操作都是constexpr 函数的迭代器被称为constexpr迭代器。
std::basic_const_iterator From cppreference.com <cpp |iterator Iterator concepts indirectly_readable (C++20) indirectly_writable (C++20) weakly_incrementable (C++20) incrementable (C++20) input_or_output_iterator (C++20) sentinel_for
/** 直接用迭代器,注意const_iterator还是iterator* */void search2() {vector<int> demo{1, 2};// 如果参数为const vector<int> 需要用const_iterator// vector<int>::const_iterator iter=v.begin();for (vector<int>::iterator it = demo.begin(); it != demo.end(); ++it) {cout << (*it...
basic_const_iterator (C++23) iterator adaptor that converts an iterator into a constant iterator (class template) const_iterator (C++23) computes a constant iterator type for a given type (alias template) const_sentinel (C++23) computes a sentinel type to be used with constant iterators ...
/// Positions the iterator at the next node in the Timer Queue virtual void next (void) = 0; /// Returns true when there are no more nodes in the sequence virtual bool isdone (void) const = 0; /// Returns the node at the current position in the sequence ...