uni-algo VS tiny-utf8

Safe layer is just bounds checks that work in all cases that I need, before that I was coping with -D_GLIBCXX_DEBUG (doesn't have safe iterators for std::string and std::string_view and that I need the most) and MSVC debug iterators (better but slow as hell in debug). You can read more about the implementation here: https://github.com/uni-algo/uni-algo/blob/main/doc/SAFE_LAYER.md Nothing interesting it's possible to implement all of this even in C++98 but no one cared back then and it's a shame that it's not in C++ standard so we cannot choose to use safe or unsafe std::string for example and must rely on implementations in compilers that are simply incomplete in many cases or implement it from scratch.

Why call your files modules? "Modular programming" or "Modular architecture" is pretty standard term in programming I don't think there are a good synonym for "module" word so I plan to use "Modules" and "C++20 Modules" to avoid ambiguity. You have one cpp file in the project. Any reason for that? Including Unicode data files that may be pretty big into header files hurts compilation speed. C++20 Modules will help with that and I plan to support it. I'd also recommend supporting CMake I will support CMake it just I didn't need it in my development stage. Overall, looks very nice. Thank you. I made a post on GitHub with some of my plans: https://github.com/uni-algo/uni-algo/issues/3

I've recently been trying to use the tiny-utf8 library in Rcpp in order to handle unicode, but I am having serious issues trying to understand how the "wrap" part of it works. For the "as" part, I've received some help on Stack Overflow, which works great, but without a wrap(), it seems that I cannot convert the data type into those of Rcpp. I've been reading this post and trying to replicate it, but with utter failure after long hours, due likely to a lack of knowledge in C++ templates. Could someone give some pointers as to how I might go about doing this? I am at the end of my wits at this point.