What should my Objective-C singleton look like? [closed]

Answer 1

KLSingleton is:

1. Subclassible (to the n-th degree)
2. ARC compatible
3. Safe with alloc and init
4. Loaded lazily
5. Thread-safe
6. Lock-free (uses +initialize, not @synchronize)
7. Macro-free
8. Swizzle-free
9. Simple

KLSingleton