Re: combining a objc header with a c header

[Pascal Bourguignon]

Right.

But  in that  case  I would  just compile  the  C code  in a  separate
library, have the Objective-C code in its own .m files.

    Stuff.h
    Stuff.c --> Stuff.a
       Stuff_fun1(x);

    StuffOC.h
    StuffOC.c --> StuffOC.a
       -[StuffOC meth1:x] { calls Stuff_fun1(x); }

Note the  difficulty here  that the Objective-C  header files  are not
named .hm or .hoc, but .h, same than C headers.

Why  mess  with  C-preprocessor?  Moreover  with  separate  files  per
language, it's easier to write the makefile.

By the way, how would you compile/use this:
------------------(happy.source)----------------------------------------

cat /*dev/null; echo "Happy New Year"\!
cat <<c*/ /*dev/null | cat > /dev/null
c */ () {} /*
c */ main() { cat(); printf("Happy New Year!\n"); } /*
17      format('Happy New Year!')
        write (6,17)
        stop
        end
c*/

------------------------------------------------------------------------

> From: Nicola Pero <n.pero@mi.flashnet.it>
> Date: Wed, 9 Jan 2002 13:51:01 +0000 (GMT)
> 
> Sorry for answering late ... problem being that gnu.gnustep.* newsgroups
> are *not* mirrored to the mailing list ... while the mailing list is being
> mirrored on the newsgroups ... so we never read your message.
> 
> >I am writing a library in c but I would like to implement a objc wrapper
> >aswell. 
> >
> >Is it possible to include in the header file c syntax as well as objc
> >syntax. 
> >
> >For example
> >
> >#ifdef COMPILING_C
> >
> >...lots of code...
> >
> >#endif
> >
> >#ifdef COMPILING_OBJC
> >
> >...lots of code...
> >
> >#endif
> 
> The Objective-C compiler can compile perfectly well C code ... so the C
> code can be compiled both in C and in Objective-C ... you don't need to
> protect it.
> 
> The C compiler can not compile Objective-C code, so you need to protect
> the Objective-C code when you compile in C.  You can simply use something
> like
> 
> #ifdef __OBJC__
> 
> #endif
> 
> __OBJC__ is defined by the compiler if and only if it is the Objective-C
> compiler.


(answer: you can run happy.source either thru csh, sh, c or fortran!)
csh happy.source
bash happy.source
c -o happy-c happy.source
f77 -o happy-f happy.source

-- 
__Pascal_Bourguignon__              (o_ Software patents are endangering
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1962:DO20I=1.100  2001:my($f)=`fortune`;  http://petition.eurolinux.org/

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