[C++-SIG] Beginer questions
Geoffrey Furnish
furnish at actel.com
Mon Nov 15 18:34:02 CET 1999
Jonathan Wight writes:
> on 11/14/99 20:54, Paul F. Dubois at dubois1 at llnl.gov wrote:
>
> > This reminds me to call attention of the C++ SIG to the article
> > in the July/Aug 1999 C++ report that explains that pointers to C
> > functions and pointers to C++ functions are no longer type
> > compatible. This has serious implications for extending Python
> > with C++, in that Python's tables expect a C function. Up to now
> > it has been possible to just cast whatever to PyCFunction and
> > move on; evidently some compilers will now start to object to
> > that if the function in question is a C++ one. I haven't had time
> > to look at this to see if I have a decent work-around.
>
> If it is a static function couldn't you just declare it as " extern
> "C" "??? I know that works fine for various callbacks in the OS.
You can declare a non-member function in C++ to have extern "C"
linkage, whether it is static or not. Of course you lose linkage
safety if you do this, but you can do it.
--
Geoffrey Furnish Actel Corporation furnish at actel.com
Senior Staff Engineer 955 East Arques Ave voice: 408-522-7528
Placement & Routing Sunnyvale, CA 94086-4533 fax: 408-328-2303
"... because only those who write the code truly control the project."
-- Jamie Zawinski
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