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1703 :: {.cdecl} and proc forward declaration

• Stefan_Salewski (orginal) [2015-10-11T02:26:02+02:00] view original

  In my GTK3 wrapper there is a macro which generates a proc forward declaration. I have the feeling that that proc should have {.cdecl.} pragma. So I added that and get problems, see

  # $ cat test.nim
  proc test() {.cdecl.}
  
  proc test() {.cdecl.} =
    echo 0
  Run

  stefan@AMD64X2 ~/nim-app $ nim c test.nim
  [...]
  test.nim(3, 13) Error: pragmas are only allowed in the header of a proc
  stefan@AMD64X2 ~/nim-app $ nim -v
  Nim Compiler Version 0.11.3 (2015-08-11) [Linux: amd64]

  No idea currently, Removing the {.cdecl.} from the forward declaration does not help. I have the feeling that {.cdecl.} does not work whenever there exists a forward declaration.

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• jyapayne (orginal) [2015-10-11T03:14:40+02:00] view original

  Nim expects the forward declaration (in this case, the "header") to only have the {.cdecl.} pragma. I ran into this issue for my macro as well, and removing the {.cdecl.} from the proc implementation solved the issue.

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• Stefan_Salewski (orginal) [2015-10-11T14:00:04+02:00] view original

  Thank you!

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