C++单例

1 template

2 class Singleton

3 {

4 public:

5 using object_type = T;

6 struct object_creator

7 {

8 object_creator()

9 {

10 Singleton::instance();

11 }

12 };

13

14 static object_creator creator_object;

15 public:

16 static object_type* instance()

17 {

18 static object_type _instance;

19 return(&_instance);

20 }

21 };

22 template typename Singleton::object_creator Singleton::creator_object;