c 2b 2b class template

1template <class T>
2void swap(T & lhs, T & rhs)
3{
4 T tmp = lhs;
5 lhs = rhs;
6 rhs = tmp;
7}

1template <class T>
2void swap(T & lhs, T & rhs)
3{
4 T tmp = lhs;
5 lhs = rhs;
6 rhs = tmp;
7}
8
9void main()
10{
11  int a = 6;
12  int b = 42;
13  swap<int>(a, b);
14  printf("a=%d, b=%d\n", a, b);
15  
16  // Implicit template parameter deduction
17  double f = 5.5;
18  double g = 42.0;
19  swap(f, g);
20  printf("f=%f, g=%f\n", f, g);
21}
22
23/*
24Output:
25a=42, b=6
26f=42.0, g=5.5
27*/

1// function template
2#include <iostream>
3using namespace std;
4
5template <class T>
6T GetMax (T a, T b) {
7  T result;
8  result = (a>b)? a : b;
9  return (result);
10}
11
12int main () {
13  int i=5, j=6, k;
14  long l=10, m=5, n;
15  k=GetMax<int>(i,j);
16  n=GetMax<long>(l,m);
17  cout << k << endl;
18  cout << n << endl;
19  return 0;
20}

1#include <vector>
2
3// This is your own template
4// T it's just a type
5template <class T1, class T2, typename T3, typename T4 = int>
6class MyClass
7{
8  public:
9  	MyClass() { }
10  
11  private:
12  	T1 data; 		// For example this data variable is T type
13  	T2 anotherData;	// Actually you can name it as you wish but
14  	T3 variable;	// for convenience you should name it T
15}
16
17int main(int argc, char **argv)
18{
19  std::vector<int> array(10);
20  //          ^^^
21  // This is a template in std library
22  
23  MyClass<int> object();
24  // This is how it works with your class, just a template for type
25  // < > angle brackets means "choose" any type you want
26  // But it isn't necessary should work, because of some reasons
27  // For example you need a type that do not supporting with class
28  return (0);
29}

1template <class myType>
2myType GetMax (myType a, myType b) {
3 return (a>b?a:b);
4}