/* $Id: recursion.c,v 1.2 2005/04/04 11:34:58 csg Exp $ */



/* Generate an example of recursive code, to see  *

 * how it can be modeled in the scope graph.      */



/* self-recursion  */

int fib(int i)

{

  if(i==0)

    return 1;

  if(i==1)

    return 1;

  return fib(i-1) + fib(i-2);

}



/* mutual recursion */

int anka(int);



int kalle(int i)

{

  if(i<=0)

    return 0;

  else

    return anka(i-1);

}



int anka(int i)

{

  if(i<=0)

    return 1;

  else

    return kalle(i-1);

}



extern volatile int In;



void main(void)

{

  In = fib(10);

}