Function template.

Write a C++ program to swap the numbers using the concept of function template.

Program Algorithm:

Step 1: Include the header files

Step 2: Declare the template class.

Step 3: Declare and define the functions to swap the values.

Step 4: Declare and define the functions to get the values.

Step 5: Read the values and call the corresponding functions.

Step 6: Display the results.

Program Code in C++:

#include<iostream.h>

#include<conio.h>

template<class t>

void swap(t &x,t &y)

{

t temp=x;

x=y;

y=temp;

}

void fun(int a,int b,float c,float d)

{

cout<<"\na and b before swaping :"<<a<<"\t"<<b;

swap(a,b);

cout<<"\na and b after swaping :"<<a<<"\t"<<b;

cout<<"\n\nc and d before swaping :"<<c<<"\t"<<d;

swap(c,d);

cout<<"\nc and d after swaping :"<<c<<"\t"<<d;

}

void main()

{

int a,b;

float c,d;

clrscr();

cout<<"Enter A,B values(integer):";

cin>>a>>b;

cout<<"Enter C,D values(float):";

cin>>c>>d;

fun(a,b,c,d);

getch();

}

Program Output:

Enter A, B values (integer): 10 20

Enter C, D values (float): 2.50 10.80

A and B before swapping: 10 20

A and B after swapping: 20 10

C and D before swapping: 2.50 10.80

C and D after swapping: 10.80 2.50