PazeE-Language/tests/anon_member.pe

// anon_member.pe — 匿名结构体/联合成员测试
struct S {
    int id;
    struct {            // 匿名 struct 成员
        int x;
        int y;
    };
    union {             // 匿名 union 成员
        int as_int;
        unsigned as_uint;
    };
};

int main(void)
{
    struct S s;
    s.id = 1;
    s.x = 10;           // 直接访问匿名 struct 字段
    s.y = 20;
    s.as_int = -7;      // 直接访问匿名 union 字段

    printf("id=%d x=%d y=%d as_int=%d\n", s.id, s.x, s.y, s.as_int);
    printf("as_uint=%u\n", s.as_uint);

    s.as_uint = 4000000000U;
    printf("after as_uint: as_int=%d as_uint=%u\n", s.as_int, s.as_uint);

    return 0;
}