bdwgc VS sgcl

Boehm GC is mentioned in the article: https://github.com/ivmai/bdwgc

This stuff is all implementation dependent. The Boehm garbage collector has been wrestling with the compilers for years regarding these issues, see its development repo.

Any kind of automatic GC is going to be rare in C. The only automatic garbage collection that I am aware of is the BDW garbage collector abet that uses mark and sweep instead of reference counting https://github.com/ivmai/bdwgc

My dude have you heard of Boehm GC

The SGCL repository contains the source code for this benchmark that uses the tracked pointers: https://github.com/pebal/sgcl/blob/main/examples/treap/treap...

You can look at the SGCL garbage collector for C++: https://github.com/pebal/sgcl. It works in a separate thread, is locks-free and never stops the world.

It will never be called gc_ptr because C++ programmers have an allergy to the term GC. However, an attempt was made to implement a similar solution. Take a look at tracked_ptr: https://github.com/pebal/sgcl

SGCL is a real-time garbage collector for C++ without any pauses.

https://github.com/pebal/sgcl

Removed GC support was useless. You can have GC pointers in C++.

Mutators are threads that allocate memory and manipulate pointers, they can work completely independently of the GC. A mutator needs only to tag an object when copies or moves a pointer to this object. The GC detects this tag and marks the object as alive. Here is a working implementation for C++: https://github.com/pebal/sgcl

I don't know Rust but you can have a pauseless GC in C++. You just need to provide asynchronous access to root pointers.