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6052 :: Like C extern pragma?

• Lachu (orginal) [2020-03-07T17:48:52+01:00] view original

  I found information about extern pragma, but It don't describe what it does. I need C-like extern pragma or way to use only function prototype (and include file with these prototypes). That's because I have problem with circual import of modules. Nim compiler complain about missing function implementation, when I tries to do that (only declaration of function in file, implementation in another).

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• Lachu (orginal) [2020-03-07T19:46:20+01:00] view original

  Ok. I found the problem. It was I use c2nim and it puts asterisk after procedure name. That was obvious. Procedure must been defined in the same file, because it was marked as to be exported. Because It was C header file (and after use of c2nim it was nim file contains only signature/prototypes/etc.), I revert state of file and removes asterisk.

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• Lachu (orginal) [2020-03-08T13:31:05+01:00] view original

  I use this hack:

  
      when not defined IS_SUPPORT_IMPORTED:
            var IS_SUPPORT_IMPORTED {.compileTime.} : bool = true
  Run

  But nim (I use nimble package/project manager) complain about IS_SUPPORT_IMPORTED is defined twice.

  /home/postep2/src/posteppkg/utility/includes/support.nim(20, 7) Error: redefinition of 'IS_SUPPORT_IMPORTED'; previous declaration here: /home/postep2/src/posteppkg/utility/includes/support.nim(20, 7)

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• Araq (orginal) [2020-03-08T14:11:35+01:00] view original

  Use when not declared instead of when not defined and stop using UPPERCASE for variables, Nim has no preprocessor.

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