C++ Program to input a decimal number and print in Binary, Octal, and Hexadecimal form with inbuilt function itoa

 

This function is not defined in ANSI-C and is not part of C++, but is supported by some compilers.

 

#include <iostream>
#include <stdlib.h>
#include<iomanip>
using namespace std;
int main ()
{
  int i;
  char buffer [20];
  cout<<"Enter The Number : ";
  cin>>i;
  cout<<"------------------------------------------------------------"<<endl;
  itoa (i,buffer,10);
  cout<<setw(15)<<"Decimal : "<<buffer<<endl;
  itoa (i,buffer,16);
  cout<<setw(15)<<"Hexadicimal : "<<buffer<<endl;
  itoa (i,buffer,2);
  cout<<setw(15)<<"Binary : "<<buffer<<endl;
  itoa (i,buffer,8);
  cout<<setw(15)<<"Octal : "<<buffer<<endl;
  return 0;
}

 

Syntax of the function itoa :

char *  itoa ( int value, char * str, int base );

Output: