I've do a basic and partial implementation for my personal usage, maybe that can help : https://github.com/dorpxam/einops-cpp

Hi. Sorry for the 'ghost' but I just restart my old github (not really used) to a fresh one. More clean and dedicated to future (more professional) projects.

The URL is now : https://github.com/dorpxam/einops-cpp (not the old https://github.com/MaxCoo/einops-cpp)

I've rewrite the code to follow (when possible) the latest version v0.7, what's the new?

• The code is now C++17 because C++20 is too immature for a large compiler support.
• The code is now free of dependencies, I integrate now the python-like iterators (no more CPPIterTools)
• The code is always header-only, but I've add a Cmake project for building the tests.
• The code is now complete for reduce(), rearrange(), repeat(), einsum(), parse_shape().
• The code integrate now a LRU Cache (need to be benchmarked)

Unfortunatly, no more backend than the Libtorch one for this version. I explain why in the 'Future version and refactoring' section of the README.md.

I hope you'll appreciate this new version.

Cheers,
Max