From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.5-pre1 (2020-06-20) on ip-172-31-74-118.ec2.internal X-Spam-Level: X-Spam-Status: No, score=-1.9 required=3.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.5-pre1 Date: Sun, 4 Apr 93 20:38:44 -0700 From: MAILER-DAEMON@ucbvax.Berkeley.EDU (Mail Delivery Subsystem) Subject: Returned mail: Cannot send message for 3 days Message-ID: <9304050338.AF28065@ucbvax.Berkeley.EDU> List-Id: ----- Transcript of session follows ----- 421 wsmr-simtel20.army.mil.tcp... Deferred: Connection refused by wsmr-simtel20 .army.mil ----- Unsent message follows ----- Received: by ucbvax.Berkeley.EDU (5.63/1.43) id AA16757; Thu, 1 Apr 93 19:38:04 -0800 Received: from USENET by ucbvax.Berkeley.EDU with netnews for info-ada-ddn@wsmr-simtel20.army.mil (info-ada@wsmr-simtel20.army.mi l) (contact usenet@ucbvax.Berkeley.EDU if you have questions) Date: 30 Mar 93 21:28:21 GMT From: emery@mitre-bedford.arpa (David Emery) Organization: The Mitre Corp., Bedford, MA. Subject: Re: Ada cost breakpoints Message-Id: References: <9303291535.AA16997@eight-ball.boeing.com> Sender: info-ada-request@wsmr-simtel20.army.mil To: info-ada@wsmr-simtel20.army.mil Open, Read, Write, pipes, Fork and Exec are included in POSIX standards. Sockets, for instance, are not currently in any approved POSIX standards. Therefore, code written using sockets is *NOT* guaranteed portable in a POSIX environment (e.g. Open VMS, CTOS or POSIX-compliant MVS, for instance). Sockets are a BSD extension (which is now included in System V). Sockets packages exist for other operating systems, but they're not "open" in the sense of formally standardized. Your semantics may vary... >It occurs to me that it might be sensible for programs to require >that all OS interfaces which are not pre-defined in the language (e.g., >Text_IO, task stuff) be defined in Posix syntax. Could you please explain this? What is "Posix syntax"? I'm not familiar with that term... dave (IEEE P1003.5 POSIX/Ada Binding Technical Editor)