Great work! I always liked the simplicity of C and the neat design of STL. After some quick sneak peeks, I'd suggest allowing the user to set up a custom memory

Great work! I always liked the simplicity of C and the neat design of STL. After some quick sneak peeks, I'd suggest allowing the user to set up a custom memory pool and/or allocator (malloc/free). These could be set via additional pointers (with a small overhead) or allowed via ifdefs in compile time so that we can opt for fast or flexible options. Good luck with future development :)