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From: jss@hector.UUCP (Jerry Schwarz)
Newsgroups: comp.lang.c++
Subject: Re: C --> C++
Message-ID: <11438@ulysses.homer.nj.att.com>
Date: 16 Apr 89 03:01:07 GMT
References: <6590096@hplsla.HP.COM>
Sender: netnews@ulysses.homer.nj.att.com
Reply-To: jss@hector.UUCP (Jerry Schwarz)
Organization: AT&T Bell Laboratories
Lines: 19

In article <6590096@hplsla.HP.COM> jima@hplsla.HP.COM (Jim Adcock) asks:
>Say you want to write your routines in C++, but for
>compatibility with old-world programmers your routines
>need to be callable from C.  Is there a clean way to do this?
>IE a way that is not dependant on the latest and
>greatest set of gyrations to encode C++ calling
>conventions into C-compatible names?  Can you
>do a extern "C" like construct that goes the other
>way? 

extern "C" actually goes both ways.

        extern "C" int f() { ... }

does exactly what you want.  (This is currently working in the
internal version of cfront that will eventually become 2.0)

Jerry Schwarz
AT&T Bell Labs, Murray Hill