Stack* createSingleLinkedStack(struct Context* context) {
    struct Stack* stack = new Stack();
    struct SingleLinkedStack* singleLinkedStack = new SingleLinkedStack();
    stack->stack = (union Data*)singleLinkedStack;
    singleLinkedStack->top = NULL;
    stack->push = C_pushSingleLinkedStack;
    stack->pop  = C_popSingleLinkedStack;
    stack->pop2  = C_pop2SingleLinkedStack;
    stack->get  = C_getSingleLinkedStack;
    stack->get2  = C_get2SingleLinkedStack;
    stack->isEmpty = C_isEmptySingleLinkedStack;
    stack->clear = C_clearSingleLinkedStack;
    return stack;
}