YB1.7 Введение в шаблоны

RobertDeMilo

Oct 27th, 2023

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#include <iostream>
#include <vector>
#include <map>
#include <sstream>
#include <utility>
using namespace std;
//int Sqr(int x)
//{
// return x * x;
//}
//double Sqr(double x)
//{
// return x * x;
//}
// Шаблонный оператор умножения для пары любого типа
template<typename First, typename Second>
pair<First, Second> operator*(const pair<First, Second>& p1, const pair<First, Second>& p2)
{
First f = p1.first * p2.first;
Second s = p1.second * p2.second;
return make_pair(f, s);
}
template <typename T>
T Sqr(T x)
{
return x * x;
}
int main()
{
/*cout << Sqr(2) << endl;
cout << Sqr(2.5) << endl;*/
auto p = make_pair(2.5, 3);
auto res = Sqr(p);
cout << res.first << endl;
cout << res.second << endl;
return 0;
}

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