Dahnielson

Ok. I haven’t posted anything in a (relative) long time. To tell the truth — there isn’t much to report.

Just for the sake of posting something: Here’s my singleton hack from the big bag of stupid-c++-tricks that I wrote for some plugins in melies fx. The following is generally a bad idea for implementing any normal singleton, except in my case where I had to implement one without the client class being aware of its singleton nature. The solution will only work on a class that do not initialize nor assign member variables in the constructor.

1. static void* g_pkInstance;
2.  
3. class MySingleton
4. {
5. public:
6. static void *operator new(std::size_t size)
7. {
8. if (!g_pkInstance)
9. g_pkInstance = ::operator new(size);
10.  
11. return g_pkInstance;
12. }
13.  
14. MySingleton()
15. {
16. }
17.  
18. ~MySingleton()
19. {
20. }
21. };