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fcn subroutine is a symbolic link?

fcn subroutine is a symbolic link?

fcn subroutine is a symbolic link?

Hi, I am working on a Fortran code. The code calls a subroutine ( call fcn )which is not defined in it.  
I have asked the writer of code for more information about fcn subroutine and he answered me,  

"The fcn subroutine is a symbolic link to a subroutine which is given in
a parameter list of another subroutine. Please referee to a Fortan
Handbook - this is standard Fortran."

I could not understand that. Could somebody help me please? Where can I find some information about this command or method?


RE: fcn subroutine is a symbolic link?

Something like this


program indir
   external callee2
   external callee3

   call printer(callee2)
   call printer(callee3)

subroutine printer(subr)
   external subr
   integer ii

   ii = 10
   call subr(ii)
   print *, ii
end subroutine

subroutine callee2(ii)
   integer ii
   ii = ii + ii
end subroutine

subroutine callee3(ii)
   integer ii
   ii = ii + ii + ii
end subroutine


RE: fcn subroutine is a symbolic link?

Dear XWB, thank you very much for your reply. Could you please introduce me a reference which   explain this method?


RE: fcn subroutine is a symbolic link?

It is a technique I've used for years.  I'll see if I can find a reference for it.

RE: fcn subroutine is a symbolic link?

Thank you very much for your valuable help.


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