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8343 :: Is it possible to mix c and c++ backend?

[2021-08-19T10:23:55+02:00]

bitstorm (orginal) [2021-08-19T10:23:55+02:00] view original

Hello,

I was wandering if it is possible to mix modules which are build with different backends (c c++) and if so what problems may occur? Please excuse if I missed relevant information in the docs or other posts.

Many thanks in advance.

Clonk (orginal) [2021-08-19T11:00:09+02:00] view original

C++ code is not valid C code.

Standardized C code is valid C++ code in 99.99% of case (and you probably don't want to use the C code that is not valid C++ as it's usually some weird un-intuitive stuff).

So in practice, you can just use C++ back-end.

Araq (orginal) [2021-08-19T11:07:17+02:00] view original

That used to be possible simply by compiling via nim c and the modules that require C++ interop would be fed to the C++ compiler and then the result would be linked together. However, it's not officially supported anymore as it's a nightmare to support properly.

bitstorm (orginal) [2021-08-19T11:38:27+02:00] view original

Many thanks!

I'm currently working on a new version of the arrayfire nim wrapper and have the choice to use the c or c++ arrayfire API - from my point of view both ways would work well. Should I prefer one backend?

Clonk (orginal) [2021-08-19T12:01:31+02:00] view original

If it's a C++ library you're wrapping, then you'll need to use the C++ back-end.

Araq (orginal) [2021-08-19T12:12:44+02:00] view original

Should I prefer one backend?
You should prefer the C++ backend as it performs better type checking and has a usually faster exception handling implementation.