Question

Write a program for template using member functions.​

Answer 1

#include <iostream>

#include <vector>

#include <algorithm>

struct Printer

{ // generic functor

std::ostream& os;

Printer(std::ostream& os) : os(os)
{
}

template<typename T>
void operator()(const T& obj) { os << obj << ' '; }
// member template
};
int main()
{
std::vector<int> v = {1,2,3};

std::for_each(v.begin(), v.end(), Printer(std::cout));

std::string s = "abc";

std::for_each(s.begin(), s.end(), Printer(std::cout));

}