foreach_vector.cpp #include <iostream> #include <vector> int main() { std::vector<int> nums { 1, 2, 3, 4, 5, 6, 7 }; for (auto num: nums) { std::cout << num << std::endl; } } We go over the vector of integers. $ ./foreach_vector 1 2 3 4 5 6 7 C++ foreach...
在C++中,foreach算法并不是一个标准的库函数。但是,您可以使用C++11中引入的范围循环(range-based for loop)来实现类似的功能。范围循环允许您遍历一个容器(如std::vector、std::array等)中的所有元素,而无需手动管理索引或迭代器。 以下是一个使用范围循环遍历std::vector中所有元素的示例: 代码语言:cpp 复制 ...
std::for_each(std::begin(employees),std::end(employees),sendAppleTo);局长：小李啊，过年了，给...
// main.cpp#include"alg_for_each.h"voidmain( ){vector<int> v1;vector<int>::iterator Iter1;// Constructing vector v1inti;for( i =-4; i <=2; i++ ) { v1.push_back( i ); }cout<<"Original vector v1 = ( ";for( Iter1 = v1.begin( ) ; Iter1 != v1.end( ) ; Iter...
#include <algorithm>#include <iostream>#include <vector>intmain(){std::vector<int>v{3,-4,2,-8,15,267};autoprint=[](constint&n){std::cout<<n<<' ';};std::cout<<"before:\t";std::for_each(v.cbegin(), v.cend(), print);std::cout<<'\n';// increment elements in-placestd...
C++ STL | accessing vector elements: Here, we are going to learnhow to access vector elements using a for each loop in C++ STL? Submitted byIncludeHelp, on May 12, 2019 Accessing vector elements Here, we are going to learn by an example –how to access vector elements using for each ...
Did C++11 range-based for loops make for_each obsolete? The answer is No. Find out when to use one or the other and keep your code expressive.
vector<int>v={3,1,4,1,5,9};for(autoiter=v.begin();iter!=v.end();++iter)std::cout<<*iter<<' ';std::cout<<"\n\n""5) init-statement can be an expression:\n";intn=0;for(std::cout<<"Loop start\n";std::cout<<"Loop test\n";std::cout<<"Iteration "<<++n<<'\n'...
std::for_each(container.begin(), container.end(), callback);} // 示例：对 array 和 vector ...
Traversing a vector using range-based (for-each like) loopWe can also use a range-based loop to traverse a vector to access and manipulate its elements.Consider the below example: Traversing a vector using a range-based loop.#include <iostream> #include <vector> using namespace std; int ...