#ifndef _LINKSTACK_H_
#define _LINKSTACK_H_

#define PKT_ASSERT(x) {if((x) == NULL){printf("assert failed!\n"); while(1);}}


struct stack_frame
{
    int data;
};
typedef struct stack_frame *stack_frame_t;

typedef struct linkstack *linkstack_t;
struct linkstack
{
    struct stack_frame frame;
    linkstack_t next;
};


#endif