C++ Program to Swap two numbers and characters using call by address

By | 27.12.2016

Swap two numbers and characters


Write a C++ Program to Swap two numbers and characters using call by address. Here’s simple C++ Program to Swap two numbers and characters using call by address in C++ Programming Language.


What are Functions ?


Function is a block of statements that performs some operations. All C++ programs have at least one function – function called “main()”. This function is entry-point of your program.

A function declaration tells the compiler about a function’s name, return type, and parameters. A function definition provides the actual body of the function.


Defining a Function : :


The general form of a C++ function definition is as follows:

return_type Function_Name( list of parameters )
{
//function’s body
}

  • return_type : suggests what the function will return. It can be void, int, char, some pointer or even a class object.
  • Function_Name : is the name of the function, using the function name it is called.
  • Parameters : are variables to hold values of arguments passed while function is called. A function may or may not contain parameter list.
  • Function body : is he part where the code statements are written.

Below is the source code for C++ Program to Swap two numbers and characters using call by address which is successfully compiled and run on Windows System to produce desired output as shown below :


SOURCE CODE : :


/*  C++ Program to Swap two numbers and characters using call by address  */

#include<iostream>
using namespace std;

void swap(int *,int *);
void swapc(char *,char *);

int main()
{
        char x,y;
        int a,b;
        cout<<"\nEnter 1st character :: ";
        cin>>x;
        cout<<"\nEnter 2nd character :: ";
        cin>>y;
        cout<<"\nEnter 1st integer :: ";
        cin>>a;
        cout<<"\nEnter 2nd integer :: ";
        cin>>b;

        cout<<"\nBefore Swapping, Value of Characters :: \n\tx = "<<x<<"\ty = "<<y<<"\n";
        cout<<"\nBefore Swapping, Value of Integers :: \n\tA = "<<a<<"\tB = "<<b<<"\n";

    swap(&a,&b);
    swapc(&x,&y);

    cout<<"\nOutside Function After Swapping, Value of Characters :: \n\tx = "<<x<<"\ty = "<<y<<"\n";
        cout<<"\nOutside Function After Swapping, Value of Integers :: \n\tA = "<<a<<"\tB = "<<b<<"\n";

}

void swap(int *a,int *b)
{
        int c;
        c=*a;
        *a=*b;
        *b=c;
        cout<<"\nInside Function After Swapping, Value of Integers :: \n\tA = "<<*a<<"\tB = "<<*b<<"\n";

}

void swapc(char *x,char *y)
{
        char z;
        z=*x;
        *x=*y;
        *y=z;
        cout<<"\nInside Function After Swapping, Value of Characters :: \n\tx = "<<*x<<"\ty = "<<*y<<"\n";
}

OUTPUT : :


/*  C++ Program to Swap two numbers and characters using call by address  */

Enter 1st character :: M

Enter 2nd character :: N

Enter 1st integer :: 3

Enter 2nd integer :: 5

Before Swapping, Value of Characters ::
        x = M   y = N

Before Swapping, Value of Integers ::
        A = 3   B = 5

Inside Function After Swapping, Value of Integers ::
        A = 5   B = 3

Inside Function After Swapping, Value of Characters ::
        x = N   y = M

Outside Function After Swapping, Value of Characters ::
        x = N   y = M

Outside Function After Swapping, Value of Integers ::
        A = 5   B = 3

Process returned 0

Above is the source code for C++ Program to Swap two numbers and characters using call by address which is successfully compiled and run on Windows System.The Output of the program is shown above .

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About Tunde A

My name is Tunde Ajetomobi, a Tech Enthusiast and Growth Hacker. I enjoy creating helpful content that solves problem across different topics. Codezclub is my way of helping young aspiring programmers and students to hone their skills and find solutions on fundamental programming languages.

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