[C++程序设计]函数模板

#include <iostream>
using namespace std;

template<typename T>
T max(T a, T b, T c)
{
if(b > a) a = b;
if(c > a) a = c;
return a;
}

int main()
{
int x, y, z, m;
cout << "please enter three integer numbers:" << endl;
cin >> x >> y >> z;
m = max(x, y ,z);
cout << "integer of max is " << m << endl;

double x1, y1, z1, m1;
cout << "please enter three double numbers:" << endl;
cin >> x1 >> y1 >> z1;
m1 = max(x1, y1 ,z1);
cout << "double of max is " << m1 << endl;

long x2, y2, z2, m2;
cout << "please enter three long numbers:" << endl;
cin >> x2 >> y2 >> z2;
m2 = max(x2, y2 ,z2);
cout << "long of max is " << m2 << endl;
return 0;
}