在用IDA反汇编C++程序的时候,经常会看到这样的语句:“call eh vector constructor iterator”或“eh vector destructor iterator”。 通常大家的第一反应是:这是在调用某个std::vector<T>对象的构造函数或析构函数。但进一步的阅读发现跟std::vector<T>的实现对不上号,就是说程序
(constructor) 构造函数声明 接口说明 vector() (重点) 无参构造 vector ( size_type n, const value_type& val = value_type()) 构造并初始化 n 个 val vector (const vector& x); (重点) 拷贝构造 vector (InputIterator first, InputIterator last); 使用迭代器进行初始化构造 迭代器 iterator 的使...
vector (InputIterator first, InputIterator last); 使用迭代器进行初始化构造 vector代码演示 代码语言:javascript 代码运行次数:0 运行 AI代码解释 #define _CRT_SECURE_NO_WARNINGS #include <iostream> using namespace std; #include <vector> // vector的构造 int TestVector1() { // constructors used...
#include<iostream>#include<vector>usingnamespacestd;intmain(){vector<int>vec({1,2,3,4,5,6,7}); vector<int>::iterator it = vec.begin();while(it != vec.end()) { cout << *it <<" "; ++it; } cout << endl;return0; } ==rbegin和rend== reverse_iteratorrbegin();const_reverse...
// vector的构造int TestV1(){// constructors used in the same order as described above:vector<int> first; // empty vector of intsvector<int> second(4, 100); // 4 ints with value 100vector<int> third(second.begin(), second.end()); // iterating through secondvector<int> fourth(...
vector<int> fourth (third);//a copy of third //the iterator constructor can also be used to construct from arrays: intmyints[] = {16,2,77,29}; vector<int> fifth (myints, myints +sizeof(myints) /sizeof(int) ); cout <<"The contents of fifth are:"; ...
vector constructor iterator(a, sizeof(MyClass), &MyClass::MyClass); return reinterpret_cast<MyClass*>(a); } return NULL; } In other words, the memory layout of the vector of MyClass objects looks like this: howmany MyClass[0]
constructor(构造函数) destructor(析构函数) operator= Iterators begin end Capacity size capacity reserve resize Element access operator[] Modifiers push_back pop_back insert erase swap 完整版实现代码 vector.h test.cpp vector的介绍 vector是C++ STL库中一个重要的容器,它分为以下几个部分(我们也将在vs...
vector<int>::iterator//int*vector<char>::iterator//char* 其实就是一个 int的指针 ,或者 char的指针。 2. vector的数据类型 vector是一个简单的线性连续空间。 它以两个迭代器 start 和 finish 分别表示vector的起始元素的地址和终止元素的地址。
// the iterator constructor can also be used to construct from arrays: int myints[] = {16,2,77,29}; std::vector<int> fifth (myints, myints + sizeof(myints) / sizeof(int) ); std::cout << "The contents of fifth are:"; ...