/*
   poly.h - header file for CS 60 assignment 3, Fall 2009
          - data types and operations to manage polynomials
          - terms are nodes of a linked list
   cmc, updated 10/22/09

   DO NOT EDIT THIS FILE - you will not turn it in.
*/

#ifndef POLY_H
#define POLY_H

/* polynomial data types */

    struct pnode {
        unsigned exponent;
        double coeff;
        struct pnode *next;
    };
    
    typedef struct pnode
        Term,   /* one term of a polynomial */
        *Poly;  /* pointer to such a term, or start of list */

/*
  prototypes for functions you must implement for this project
  (see instructions):
*/
    void addTerm(double, unsigned, Poly *);
    double value(Poly, double);
    int degree(Poly);
    int count(Poly);
    Poly sum(Poly, Poly);
    Poly diff(Poly, Poly);
    Poly mult(Poly, Poly);
    void freePoly(Poly *);
    
/*
  prototypes for functions already implemented in poly.c-skeleton
*/
    Term *newTerm(double, unsigned);
    void freeTerm(Term *);
    int termsCreated(void);
    int termsFreed(void);

#endif