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=0.2 required=5.0 tests=BAYES_00,INVALID_MSGID, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,257bc0ff954a7696 X-Google-Attributes: gid103376,public From: kilgallen@eisner.decus.org (Larry Kilgallen) Subject: Re: C/C++ cheaper than Ada?? how? Re: Ada 200X Date: 1998/07/14 Message-ID: <1998Jul14.131958.1@eisner>#1/1 X-Deja-AN: 371405606 X-Nntp-Posting-Host: eisner.decus.org References: <3.0.32.19980712065953.009dd470@iu.net> <1998Jul13.192027.1@eisner> X-Trace: news.decus.org 900436801 5294 KILGALLEN [192.67.173.2] Organization: LJK Software Reply-To: Kilgallen@eisner.decus.org.nospam Newsgroups: comp.lang.ada Date: 1998-07-14T00:00:00+00:00 List-Id: In article , ak@muc.de writes: > kilgallen@eisner.decus.org (Larry Kilgallen) writes: > >> In article , dewar@merv.cs.nyu.edu (Robert Dewar) writes: >> >> > As for "don't admit programs which have runtime systems". There is nothing >> > about Ada that requires that every Ada program needs a runtime system. Indeed, >> > GNAT provides a capability, which we call GNORT (GNAT with No RUntime) that >> > does what it says. Allows the compilation of programs with absolutely no >> > runtime. Obviously this means that there are restrictions in the subset >> > that can be used, >> >> Not so obvious to some of us. Please elaborate. > > I guess all features related to tasking (protected types, the task type) > are gone. Exceptions need moderate run time system support, so maybe they > are gone too (?) Well I didn't take "no run time" to mean "no operating system", but even if it does, an Ada compiler could emit the necessary instructions as part of the image to do tasking. I am not saying it is cost-effective for a particular market situation, but it is not a technical impossibility. Are the GNORT restrictions just pragmatics, or are there technical limits? And by "no runtime" is it meant "no operating system" ? Larry Kilgallen