With `nim cpp` the Nim compiler actually just generates C++ from the Nim source ... | Hacker News

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		cb321 7 months ago \| parent \| context \| favorite \| on: A review of Nim 2: The good and bad with example c... With `nim cpp` the Nim compiler actually just generates C++ from the Nim source for the backend to compile. So, calling C++ code is just emitting the calls at a C++ source level and so is straightforward. The situation with Rust "sharing" LLVM is very different, as that is not a source-to-source compiler. C++ code calling Nim code is also not usually as straightforward. So, "fantastic" here may apply only in one call direction.

miguel_martin 7 months ago [–]

The way to enable C++ code calling Nim is via exportc or exportcpp and by writing a head file with the declarations you are exporting

This will require manual work, but you can use macros or a code generation script to help if your api is large.

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