Error on import

[general-rishkin]

I just installed ArrayfireNim and compiled with nim cpp -r test.nim and I get this error:
C:\Users\general_riskin\.nimble\pkgs\ArrayFireNim-0.2.1\ArrayFireNim.nim(824, 1) Error: redefinition of '+='; previous declaration here: C:\Users\general_riskin\.nimble\pkgs\ArrayFireNim-0.2.1\ArrayFireNim.nim(812, 6).

All test.nim has in it is import ArrayFireNim.

[bitstormFA]

I am currently thinking about rewriting this from scratch but I will try to look into this error as soon as possible - many thanks for taking the time to report it.

[general-rishkin]

Hello I would like to get some practical experience wrapping a C++ library. I wonder if you could provide me with a step-by-step guide of how you wrapped ArrayFire so I could you use it as a guide. This would be very helpful indeed. I am looking forward to hearing from you. Many thanks in advance. Gennadiy

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On Tue, 27 Apr 2021 at 09:46, bitstormGER ***@***.***> wrote: I am currently thinking about rewriting this from scratch but I will try to look into this error as soon as possible - many thanks for taking the time to report it. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#3 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ARFN45HF62XQRHYVHPNPLC3TKZ2YDANCNFSM43RRE2FA> .

[bitstormFA]

Hi Gennadiy,

The general approach was quite easy. I used a hand written python preprocessing to get to a single, simplified header file.
In the next step I fed this to c2nim, fixed the problems and experimented with the result.
Finally I hand crafted the the Matrix type and some convenience tools to have some simplification compared to the "pure" wrapper.

But this was some years ago and nowadays I would probably start with cpp2nim or something similar..

I haven't used nim a lot lately but I always felt that if interfacing complex cpp libraries would be more seamless this could be a big selling point but I guess this is technically very hard.

I hope this helps

[general-rishkin]

Thanks, it does help. I will have a look at cpp2nim although I have to say I am seriously considering moving back to C++. Yes, I agree with you. If Nim could have seamless interop with C++, that would enhance its visibility. It is probably technically hard as you said but D and Julia manage it quite well so I guess it also requires some willingness either on the part of the Nim developers or the users.

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On Thu, 20 May 2021 at 15:50, bitstormGER ***@***.***> wrote: Hi Gennadiy, The general approach was quite easy. I used a hand written python preprocessing to get to a single, simplified header file. In the next step I fed this to c2nim, fixed the problems and experimented with the result. Finally I hand crafted the the Matrix type and some convenience tools to have some simplification compared to the "pure" wrapper. But this was some years ago and nowadays I would probably start with cpp2nim <https://github.com/mantielero/cpp2nim> or something similar.. I haven't used nim a lot lately but I always felt that if interfacing complex cpp libraries would be more seamless this could be a big selling point but I guess this is technically very hard. I hope this helps — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#3 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ARFN45FHVHRMLNAHR6QSXPDTOUOS7ANCNFSM43RRE2FA> .

[bitstormFA]

I can only test on my arch linux and can't reproduce this error at the moment, please open a new issue if this still is a problem - I will try to setup a windows test environment soon.