数组堆栈的宏？？？？？

#include<stdio.h>
#include<stdlib.h>
#include <assert.h>// 断言
//下面是数组堆栈的宏 函数依次是 判空 判满 压入 置顶 输出
#define generic_stack(stack_type,suffix,stack_size)        \
        static stack_type stack##suffix[stack_size];    \
        static int  top_element##suffix=-1;                 \
        int is_empty##suffix()                             \
        {                                                 \
           return top_element##suffix==-1;                 \
        }                                                  \
        void is_full##suffix()                              \
        {                                                   \
           return top_element##suffix==stack_size-1;         \
        }                                                    \
        int push##suffix(stack_type value)                     \
        {                                                     \
                assert(!is_full##suffix());                     \
               top_element##suffix+=1;                         \
         stack##suffix[top_element##suffix]=value;             \
        }                                                    \                           
        void pop##suffix()                                    \
        {                                                     \
                assert(!is_empty##suffix());                 \
               top_element##suffix-=1;                         \
        }                                                    \
        stack_type top##suffix()                            \
        {                                                    \   
               assert(!is_empty##suffix());                    \
              return stack##suffix[top_element##suffix];    \
        }                                                   
   



void main()
{
generic_stack(int,_int,10);
push_int(5);//输入5
push_int(10);
push_int(20);
    while(!is_empty_int())
    {
        printf("%d\n",top_int());//输出
        pop_int();
    }


}