Crate counting_pointer

counting-pointer provides struct Sc and Asc . They behave like std::rc::Rc and std::sync::Arc except for the followings.

• Sc and Asc treats only strong reference but not weak reference for the performance.
• Sc and Asc takes GlobalAlloc type as a template parameter.

Structs

Asc	A thread-safe strong reference-counting pointer. 'Asc' stands for 'Atomic Strong Counted.'
Sc	A single-threaded strong reference-counting pointer. 'Sc' stands for 'Strong Counted.'