[Dev-C++] linked lists...

[<com...@ya...>]

i tried to write a code using linked lists to implement the multiplication and addition of twp polynomials but it seems i'm not very successfull cause my pop funcition doesn't do what it should and i don't know why i get that access violation error ..could any one help??

thanx...

/* definitions*/

typedef struct node{

int coefficient;

int exponent;

struct node *next;

}node;

typedef struct stack{

node *firstptr;

}stack;

/*and the pop function*/

node *pop(stack *s){

node *ptr=new node;

if(nptr==NULL){

cout<<"exhausted memory"<<endl;

exit(1);

}

else{

nptr->coefficient=s->firstptr->coefficient;

nptr->exponent=s->firstptr->exponent;

s->firstptr=s->firstptr->next;//that's the problematic part

}

return nptr;

}



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