step4-assign-pointers.c

/* int_stack.c */
#include "int_stack.h"

static void push(IntStack* this, int value); // function declarations
static int pop(IntStack* this);
static int peek(IntStack* this);
static bool is_empty(IntStack* this);
static void delete(IntStack** this);
IntStack* new_stack()
{
    IntStack* this = malloc(sizeof (IntStack));
    this->top = NULL;
    this->push = &push;
    this->pop = &pop;
    this->peek = &peek;
    this->isEmpty = &is_empty;
    this->delete = &delete;
    return this;
}

// struct int_node definition

// Function definitions