C编译报错：error: cast from pointer to integer of different size [-Werror=point

[无烟无酒亦无妞]

typedef struct key_info_s{
	size_t csize;			///< 本结构体大小
	key_type_e type;				///< 成员类型
	const char *key;				///< 成员名称
	int offset;				///< 成员偏移地址
	size_t ksize;					///< 成员大小
	struct key_info_s *sub_key;	///< 对于#KEY_TYPE_OBJECT类型，其具体类型定义
	int arraycnt;					///< 对于#KEY_TYPE_ARRAY类型，其个数
	key_type_e arraytype;		///< 对于#KEY_TYPE_ARRAY类型，其成员的类型
}key_info_t;


/*成员在结构体中的偏移地址*/
#define NAME_OFFSET(type,name) ((int)(&(((type *)0)->name)))
//#define NAME_OFFSET(type,name) ((int)(*(int *)(&(((type *)0)->name))))
#define NAME_SIZE(type,name) (sizeof((((type *)0)->name)))

static key_info_t rect_key[] = {
	MAKE_KEY_INFO(RECT, KEY_TYPE_U32, x,  NULL),   /*编译报错：error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]*/
	MAKE_KEY_INFO(RECT, KEY_TYPE_U32, y,  NULL), /*编译报错：error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]*/
	MAKE_KEY_INFO(RECT, KEY_TYPE_U32, w,  NULL),/*编译报错：error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]*/
	MAKE_KEY_INFO(RECT, KEY_TYPE_U32, h,  NULL)/*编译报错：error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]*/
};

[赵4老师]

VS IDE中，在不明白的符号上点鼠标右键，选转到定义。 在宏MAKE_KEY_INFO中，企图将指针类型转换为无符号32位整型数，但这在64位环境下会发生兼容性问题。