From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: * X-Spam-Status: No, score=1.3 required=5.0 tests=BAYES_00,INVALID_MSGID, MSGID_RANDY autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,30a9bb3017fa58dd X-Google-Attributes: gid103376,public X-Google-Thread: 1025b4,959627a08fbc77c5 X-Google-Attributes: gid1025b4,public From: Robert Dewar Subject: Re: GNAT versions ( was :Ada compiler for PC?) Date: 1999/05/06 Message-ID: <7gs0d5$lvh$1@nnrp1.deja.com>#1/1 X-Deja-AN: 474693258 References: <7fndu7$im4$1@nnrp1.dejanews.com> <7gbjhg$s98$1@rtl.cygnus.com> <7gpsrd$qc7$1@nnrp1.dejanews.com> X-Http-Proxy: 1.0 x13.dejanews.com:80 (Squid/1.1.22) for client 205.232.38.4 Organization: Deja News - The Leader in Internet Discussion X-Article-Creation-Date: Thu May 06 12:02:46 1999 GMT Newsgroups: comp.lang.ada,gnu.misc.discuss X-Http-User-Agent: Mozilla/3.01SC-SGI (X11; I; IRIX 5.3 IP22) Date: 1999-05-06T00:00:00+00:00 List-Id: In article , mrs@kithrup.com (Mike Stump) wrote: > Well, I take exception to the word entirely. There was a mailing list > called eh@cygnus.com, and we discussed tons of details and issues, > from many language perspectives, including Ada and C++. This was in my response to the claim that unfortunately the exception handling in Ada had been developed entirely independently of the mechanism in C++. I did the design and implementation of the exception handling in Ada, so I am pretty familiar with what was and was not done. Yes there were early discussions about trying to deal with commonality between the languages, but unfortunately these did not result in a common facility. I tried to understand what had been done for C++ but failed. Others here at ACT are still trying to do more merging here, but it is not easy. I found no high level interface oriented description of the mechanism used for C++. Perhaps I simply did not look hard enough, or just did not know how to read the code correctly. I find the back end of GCC rather difficult to navigate (and indeed in a recent email Per Bothner (hope I remembered the spelling right) claimed that the entire gcc compiler was ill-documented so why single out the exception handling). I find that position FAR too pessimistic, and indeed in general the gcc backend is documented a lot better than many proprietary compilers with which I am familiar, but in this particular case, we have not yet achieved the ideal of merging the exception handling of C++ and Ada. I believe this could only have been achieved if we had started with a fully documented high level design. Again, this may simply be a different way of working, here at ACT, we really aren't very good at roaming around code and figuring out what is going on, we depend on a very structured design approach, so there is undoubtedly a bit of a culture clash :-) :-) -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own