How to print array from the start using recursion (C++ Tutorial)

Print array from the start using recursion

DisplayFromFirst() take 3 input parameters; first is the string to display, second is the index which refers to each location of the array starting from 0 to size, and the third is the size of the string. And it display the string from the start.

Code of DisplayFromFirst()

void DisplayFromFirst( char str[] , int i , int size )

{

      if ( i < size )

      {

            cout << str[i];

            DisplayFromFirst( str , i + 1 , size );

      }

}

Summary of DisplayFromFirst()

DisplayFromFirst() is a recursive function which calls itself again and again till the current index i approaches to the size of the string.

Example (C++)

#include "stdafx.h"

#include "iostream"

#include "conio.h"

using namespace std;

void DisplayFromFirst( char str[] , int i , int size )

{

      if ( i < size )

      {

            cout << str[i];

            DisplayFromFirst( str , i + 1 , size );

      }

}

int main()

{

      char str[]="Saad Bin Saulat";

     

      DisplayFromFirst( str , 0 , strlen( str ) );

      _getche();

      return 0;

}

Output

Saad Bin Saulat