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=unavailable autolearn_force=no version=3.4.4 Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!.POSTED!not-for-mail From: "Jeffrey R. Carter" Newsgroups: comp.lang.ada Subject: Re: How to get Ada to ?cross the chasm?? Date: Fri, 11 May 2018 21:58:26 +0200 Organization: Also freenews.netfront.net; news.tornevall.net; news.eternal-september.org Message-ID: References: <1c73f159-eae4-4ae7-a348-03964b007197@googlegroups.com> <16406268-83df-4564-8855-9bd0fe9caac0@googlegroups.com> <87o9i2pkcr.fsf@nightsong.com> <87in88m43h.fsf@nightsong.com> <87efiuope8.fsf@nightsong.com> <87lgd1heva.fsf@nightsong.com> <87zi1gz3kl.fsf@nightsong.com> <878t8x7k1j.fsf@nightsong.com> <87fu342q1o.fsf@nightsong.com> <87mux9645j.fsf@nightsong.com> <8736yz18e4.fsf@nightsong.com> <87mux62it0.fsf@nightsong.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Fri, 11 May 2018 19:58:26 -0000 (UTC) Injection-Info: reader02.eternal-september.org; posting-host="81ed33047450411fd76696670ddbe5f1"; logging-data="5116"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19+uNT/DH36wdxDDHD5VachITOwiN6UGZ0=" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 In-Reply-To: Content-Language: en-US Cancel-Lock: sha1:nzlyTYD1o40aRnTBjoFPB40n71Q= Xref: reader02.eternal-september.org comp.lang.ada:52285 Date: 2018-05-11T21:58:26+02:00 List-Id: On 05/11/2018 08:59 PM, Niklas Holsti wrote: > > Robert Dewar used to say that when some Ada source code is _really_ semantically > equivalent to some C source code, GNAT is expected to produce the same machine > code for the Ada as GCC/C produces for the C, or at last not slower code. Dewar said he had a collection of equivalent C and Ada programs that produced identical machine code when compiled with GCC and GNAT. -- Jeff Carter "Since I strongly believe that overpopulation is by far the greatest problem in the world, this [Soylent Green] would be my only message movie." Charleton Heston 123