for each item in c++ code example
Example 1: for each c++
#include <iostream>
#include <algorithm>
#include <vector>
void myfunction (int i) {
std::cout << ' ' << i;
}
struct myclass {
void operator() (int i) {std::cout << ' ' << i;}
} myobject;
int main () {
std::vector<int> myvector;
myvector.push_back(10);
myvector.push_back(20);
myvector.push_back(30);
std::cout << "myvector contains:";
for_each (myvector.begin(), myvector.end(), myfunction);
std::cout << '\n';
std::cout << "myvector contains:";
for_each (myvector.begin(), myvector.end(), myobject);
std::cout << '\n';
return 0;
}
Example 2: for each c++
template<class InputIterator, class Function>
Function for_each(InputIterator first, InputIterator last, Function fn)
{
while (first!=last) {
fn (*first);
++first;
}
return fn;
}