vmcontainer VS re2j

Some game engine developers have certainly used this idea, to prevent any reallocations when the dynamic array needs to be resized. Such as:

https://ruby0x1.github.io/machinery_blog_archive/post/virtua...

Some ECS implementations use this to reduce the overhead of dynamic arrays, as well as ensuring pointer stability of the items stored. For example entt:

https://skypjack.github.io/2021-06-12-ecs-baf-part-11/

And here's a library implementing a resizable, pointer-stable vector using virtual memory functionality from the OS:

https://github.com/mknejp/vmcontainer

We have also released in the meantime our code on GitHub (https://github.com/mknejp/vmcontainer)

I did this for an object pool in re2j and saw even single threaded performance improve.

https://github.com/google/re2j/blob/dc7d6e5d41225dc0825ea6fe...

Java doesn't suffer from pointer address ABA but I did have to handle reinsertion (except when the stack had only one element).

To fix it, we’ll use the Re2j library.

Safe regex The default Java regex matcher has a flaw that could be exploited and should thus be avoided, especially when dealing with user input. Use another matcher, such as Google’s RE2/J. You can find instructions and additional information at that link.