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: 103376,38159b1b5557a2e7 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2004-01-26 15:10:12 PST Path: archiver1.google.com!news2.google.com!news.maxwell.syr.edu!newsfeed.mathworks.com!nntp.TheWorld.com!not-for-mail From: Robert A Duff Newsgroups: comp.lang.ada Subject: Re: Standard Ada Preprocessor (Was: why ada is so unpopular ?) Date: 26 Jan 2004 18:10:10 -0500 Organization: The World Public Access UNIX, Brookline, MA Message-ID: References: NNTP-Posting-Host: pip1-5.std.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: pcls4.std.com 1075158610 9395 192.74.137.185 (26 Jan 2004 23:10:10 GMT) X-Complaints-To: abuse@TheWorld.com NNTP-Posting-Date: Mon, 26 Jan 2004 23:10:10 +0000 (UTC) User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.2 Xref: archiver1.google.com comp.lang.ada:4844 Date: 2004-01-26T18:10:10-05:00 List-Id: Lionel.DRAGHI@fr.thalesgroup.com writes: The approach you outlined is a good one, in many cases, but: > One drawback of this template respect to conditional compilation is an added > indirection and dispatching hidden into OS_Interface body. > But if someone care of performance at this point, he is in a desperate > situation. I have sometimes needed static constants that depend on the configuration, either for efficiency reasons, or so I could use them in places where Ada requires static expressions. - Bob