TheAlgorithms-C/conversions/decimal_to_octal_recursion.c

//Program to convert decimal number to octal (Using Reccursion)
//This program only works for integer decimals
//Created by Aromal Anil

#include <stdio.h>
int decimal_to_octal(int decimal)
{
  if( (decimal<8) && (decimal>0) )
  {
    return decimal;
  }
  else if(decimal==0)
  {
    return 0;
  }
  else
  {
    return ( (decimal_to_octal(decimal/8)*10) + decimal%8 );
  }
}
void main()
{
  int octalNumber,decimalNumber;
  printf("\nEnter your decimal number : ");
  scanf("%d",&decimalNumber);
  octalNumber = decimal_to_octal(decimalNumber);
  printf("\nThe octal of %d is : %d" ,decimalNumber,octalNumber);
}