cpp-dump VS RuntimeCompiledCPlusPlus

Well, one thing you can use alongside this project is a small library called cpp-dump, which lets you pretty print variables. https://github.com/philip82148/cpp-dump

It's just a normal library you can use with any compiled project, but it works nicely with Root C++ for built-in and std types.

Great if (say) you're working through implementing vector or linear algebra and want a nice way to display your multi-dimensional arrays and vectors.

Just copy the project folder somewhere (most conveniently where you invoke the interpreter from), do `#include "cpp-dump/dump.hpp` and then `cpp_dump(myVariable)` to print your variables.

You can see what it looks in this example where I was mucking about with permutations of vectors: https://i.imgur.com/yRpY5Bj.png

View on GitHub

It just hardcodes std::pair and std::tuple

https://github.com/philip82148/cpp-dump/blob/main/hpp/export...

hscpp (Hotswap C++) is an experimental library I created which allows you to hot-reload C++. It was heavily inspired by Runtime Compiled C++, and works by linking DLLs into your project at runtime.

The only recent attempt to make something like this practical, as far as I know, was RCCpp. Going by the GH activity, it looks like it kind of went nowhere.

FYI I maintain a list of runtime compiled C++ approaches on this wiki: https://github.com/RuntimeCompiledCPlusPlus/RuntimeCompiledCPlusPlus/wiki/Alternatives

There is https://github.com/RuntimeCompiledCPlusPlus/RuntimeCompiledC...

The idea is to use virtual functions, and recompile new classes into a shared library. The shared lib is linked into the running program, and old instances of the classes are deleted and replaced by new instances constructed from the share library.

I am working on a library using the same (stolen) idea here:

https://github.com/jheruty/hscpp

Proof of concept demo:

https://m.youtube.com/watch?v=pjGngeKgni8

hscpp is still very alpha, and I’m sure I’ll find lots of bugs as I work on a “real” demo. In contrast, Runtime Compiled C++ is quite mature and is used in real game projects.

Note that this approach very much limits your architecture. For example, you won’t be able to use statics, as the newly compiled shared libraries won’t see them.

It’s a finicky thing, worth it to me, but not something you can just plop in to an established project.

Well of course it's possible to generate executable code at runtime in C++ since clang itself is written in C++, but it's definitely a much larger undertaking, but there's two such efforts I know of, Cling and RuntimeCompiledCPlusPlus.