Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!usc!apple!marc
From: marc@Apple.COM (Mark Dawson)
Newsgroups: comp.sys.mac.programmer
Subject: external C fcns from MPW C++
Keywords: C++
Message-ID: <49510@apple.Apple.COM>
Date: 23 Feb 91 17:50:07 GMT
References: <1991Feb21.202709.16319@bwdls61.bnr.ca> <49509@apple.Apple.COM>
Organization: Apple Computer Inc., Cupertino, CA
Lines: 30

I've run into a problem when trying to call a C function from my C++ code--I
don't know how to tell C++ that this is a C function:

void x()
  {
     Boolean IsItThere();   // my external C fcn
     if (IsItThere())
       DoIt();
  }
The Linker complains because it can't find "IsItThere__Fv".  I know that I
can do :
extern "C" {
  Boolean IsItThere();
  Boolean WasItThere();
}
But this doesn't seem to work when declaring the function from inside a 
a function.

Is what I want to do possible?  If it is, how can you do it?

Thanks,  
Mark

-- 
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Mark Dawson                Service Diagnostic Engineering
AppleLink: Dawson.M

Apple says what it says; I say what I say.  We're different
---------------------------------