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: 103376,257f84dada6fa64a X-Google-Attributes: gid103376,public From: Robert Dewar Subject: Re: Propagation of unhandled exceptions during elaboration, in a tasking program Date: 1999/11/02 Message-ID: <7vnc8t$blo$1@nnrp1.deja.com>#1/1 X-Deja-AN: 543584551 References: <7vjvb3$kn5$1@hobbes2.crc.com> <381E44F2.CA734022@callnetuk.com> <7vmj34$oc2$1@nnrp1.deja.com> X-Http-Proxy: 1.0 x33.deja.com:80 (Squid/1.1.22) for client 205.232.38.14 Organization: Deja.com - Before you buy. X-Article-Creation-Date: Tue Nov 02 18:58:40 1999 GMT X-MyDeja-Info: XMYDJUIDrobert_dewar Newsgroups: comp.lang.ada X-Http-User-Agent: Mozilla/4.04 [en] (OS/2; I) Date: 1999-11-02T00:00:00+00:00 List-Id: In article , Robert A Duff wrote: > Also, there's an obscure Implementation Permission in > 10.2(30), which *allows* the implementation to abort all the > tasks in this situation. I don't think any implementations > actually do that. Interesting, actually it seems a good idea to take advantage of this. A pity it is not more extensive, and would also apply to the nested case (Constraint_Error raised, no CE handler anywhere, but you get stuck waiting for an inner task to terminate), not to mention the silent task termination case. I really don't see generating junk output from a program whose formal semantics is well defined and which is not expected to generate any output. However, I suppose an option to fix all three problems in the obvious way at the same time would make sense if it is not the standard mode. Sent via Deja.com http://www.deja.com/ Before you buy.