/*
   poly.c
   Implements "poly.h" interface.

   TYPE YOUR NAME AND THE DATE HERE
   
*/

#include <math.h>
#include <stdlib.h>
#include <stdio.h>

#include "poly.h"

/*** YOUR ENTIRE SOLUTION HERE ***/



/*** PART OF ASSIGNMENT SKELETON BELOW THIS COMMENT - DO NOT CHANGE ***/

int created = 0, freed = 0; /* for counting terms allocated in memory */

/* creates a new polynomial term (a list node),
   and increments count of terms created */
Term *newTerm(double coeff, unsigned exponent) {
    Term *node;
    if ((node = (Term *)malloc(sizeof(Term))) != NULL) {
        node->exponent = exponent;
        node->coeff = coeff;
        node->next = NULL;
        ++created;
        return node;
    }
    else { /* only if dynamic memory not available */
        fprintf(stderr, "ran out of memory - might as well stop");
        return NULL;
    }
}

/* frees memory allocated for a term, and increments freed count */
void freeTerm(Term *t) {
    free(t);
    ++freed;
}

/* returns number of terms created since execution began */
int termsCreated(void) { return created; }

/* returns number of terms freed since execution began */
int termsFreed(void) { return freed; }