do
{
cout << "Enter Your base :";
cin >> base
}while(base<2||base>16);
cout<<"Enter The number for this base :"
cin.getline(number); //number is string [or character array.]
int i=0;
if(number[i] >= 'A' && number[i] <= 'F' )
     num2dec = (number - 55) * base;
else
     num2dec = atoi(number[i]) * base;
for(i=1;i<number.length(); )
{    
     if(number[i] >= 'A' && number[i] <= 'F' )
       digit = number - 55;
     else
       digit = atoi(number[i]);   
   num2dec += digit;
   i++;
   if(i<number.length()-1)
   {     
       num2dec = num2dec * base;
   }
   else
     break;
    
}

char d[] = "0123456789abcdef";

 

//Using WHILE-loop to get number of place values
							while(pow((float)newBase, count) <= base10)
							{
								count++;
							}

							count -= 1;

							divisor = pow((float)newBase, count);
							dividend = base10;

							//FOR-loop process to get digits for desired base conversion
							for(i = count; i >= 0; i--)
							{
								digit[i] = dividend/divisor;
								dividend = dividend % divisor;
								divisor = pow((float)newBase, (i-1));
							}

							//Display Conversion
							cout << base10 << " Base-10 is equal to ";

							for(i = count; i >= 0; i--)
							{
								cout << digit[i] << "";
							}

							cout << " Base-" << newBase << endl << endl;