C++ Structure / Union 사용예제

#pragma pack(push, 1)
typedef struct 
{
	unsigned short a1:1;
	unsigned short a2:1;
	unsigned short a3:1;
	unsigned short a4:3;
	unsigned short a5:1;
	unsigned short a6:1;
	unsigned short a7:1;
	unsigned short a8:1;
	unsigned short a9:1;
	unsigned short a10:1;
} AAA;

typedef union
{
	AAA flag;
	unsigned short sval;
} AAAu;
#pragma pack(pop)


int main()
{
	AAAu a = {0};
	a.flag.a5 = 1;

	return 0;
}