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 autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,758f1e01b86b6274 X-Google-Attributes: gid103376,public From: Vincent Marciante Subject: Re: Export instances of procedures Date: 2000/04/18 Message-ID: <38FD0E08.6C96@li.net>#1/1 X-Deja-AN: 612943283 Content-Transfer-Encoding: 7bit References: <38FCBA00.992AA7A2@maths.unine.ch> Content-Type: text/plain; charset=us-ascii X-Complaints-To: abuse@verio.net X-Trace: nuq-read.news.verio.net 956108314 209.139.0.133 (Wed, 19 Apr 2000 01:38:34 GMT) Organization: Verio MIME-Version: 1.0 NNTP-Posting-Date: Wed, 19 Apr 2000 01:38:34 GMT Newsgroups: comp.lang.ada Date: 2000-04-18T00:00:00+00:00 List-Id: Gautier wrote: > > Hi. GNAT 3.10-3.12 doesn't seem to want to export directly, > i.e. without "renames", instances of procedures out of a package. > Is there an Ada rule behind it ? No explanation found in the Manual. > > Example: > > 1) This works: > > package DMA is > 48: procedure Read_8bit_AutoInit( linearAddressOfBuffer: unsigned_32; > length: integer ); > end DMA; At this point, Read_8bit_AutoInt(...) requires a completion. A subprogram renaming declaration (RM 8.5.4) can act as a completion but an instantiation can't. Other valid completions are: a body, a body stub and an import pragma. I don't remember where in the RM a list of all valid completions is listed. > > package body DMA is > generic > dmaCommand: Unsigned_8; > procedure Program_DMA( linearAddressOfBuffer: unsigned_32; > length: integer ); > > procedure Program_DMA( linearAddressOfBuffer: unsigned_32; > length: integer ) is > ... > end Program_DMA; > > procedure R8AI is new Program_DMA( 16#58# ); > > procedure Read_8bit_AutoInit( linearAddressOfBuffer: unsigned_32; > length: integer ) > renames R8AI; > end DMA; > > 2) But, if I put: "procedure Read_8bit_AutoInit is new Program_DMA( 16#58# );" > I get: "Read_8bit_Autoinit" conflicts with declaration at line 48 > and of course: missing body for "Read_8bit_AutoInit" declared at line 48 > > Strange, isn't it ? > > ______________________________________________________ > Gautier -- http://members.xoom.com/gdemont/gsoft.htm