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=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,a59300e1cca1082c X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2001-09-25 07:21:33 PST Path: archiver1.google.com!newsfeed.google.com!newsfeed.stanford.edu!logbridge.uoregon.edu!nntp.abs.net!cpk-news-hub1.bbnplanet.com!cambridge1-snf1.gtei.net!news.gtei.net!inmet!not-for-mail From: Tucker Taft Newsgroups: comp.lang.ada Subject: Region-based mem mgmt [was: Re: Safe C++] Date: Tue, 25 Sep 2001 10:21:32 -0400 Organization: AverStar (formerly Intermetrics) Burlington, MA USA Message-ID: <3BB092EC.EDC3F1F@avercom.net> References: <3BA7A45D.186EE27A@adaworks.com> <20010919072904.O10277-100000@shell5.ba.best.com> NNTP-Posting-Host: 192.168.24.34 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Trace: inmet2.burl.averstar.com 1001427688 29319 192.168.24.34 (25 Sep 2001 14:21:28 GMT) X-Complaints-To: usenet@inmet2.burl.averstar.com NNTP-Posting-Date: 25 Sep 2001 14:21:28 GMT X-Mailer: Mozilla 4.75 [en] (X11; U; SunOS 5.7 sun4u) X-Accept-Language: en Xref: archiver1.google.com comp.lang.ada:13332 Date: 2001-09-25T14:21:28+00:00 List-Id: Brian Rogoff wrote: > ... > Rather than just snipe from the side at people trying to do better, take > a look at > > http://www.cs.cornell.edu/projects/cyclone/ > > and consider that it certainly has some features which are arguably better > than the Ada alternatives. > > Putting my "Ada fan" hat on, I'd say that some of the work on region based > memory management should find it's way into some Ada dialect, maybe even > into the standard... I agree that we should look closely at "region-based memory management" for Ada 200X. It is essentially the same thing as mark/release heap management, but with guaranteed safety. That makes it ideal for Ada -- provably safe and simple/efficient at run-time. I like the ease of use provided by garbage collection, but it is difficult to prove the safety of a general purpose garbage collector ("prove" in the sense of FAA-style certification), and it is certainly not simple nor terribly efficient at run-time, especially when compared with mark/release heap management. > -- Brian -- -Tucker Taft stt@avercom.net http://www.avercom.net Chief Technology Officer, AverCom Corporation (A Titan Company) Bedford, MA USA (AverCom was formerly the Commercial Division of AverStar: http://www.averstar.com/~stt)