From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-25) on ip-172-31-91-241.ec2.internal X-Spam-Level: X-Spam-Status: No, score=0.0 required=3.0 tests=none autolearn=ham autolearn_force=no version=4.0.1 Path: nntp.eternal-september.org!eternal-september.org!feeder.eternal-september.org!.POSTED!not-for-mail From: "Dmitry A. Kazakov" Newsgroups: comp.lang.ada Subject: Re: In precision typing we trust Date: Thu, 28 Aug 2025 02:00:44 +0200 Organization: A noiseless patient Spider Message-ID: <108o67c$10c60$2@dont-email.me> References: <107uv9g$3019a$1@dont-email.me> <107v1ji$303of$1@dont-email.me> <336fbb5f-a279-ea8e-67fd-f62bb00d6a89@irrt.De> <107vfb9$34cpj$1@dont-email.me> <10855lq$gj8l$1@dont-email.me> <1088h1a$19635$1@dont-email.me> <1089p1i$1ig1d$1@dont-email.me> <108aq2p$1qo9o$1@dont-email.me> <108b1r3$1sj3c$1@dont-email.me> <108dh4t$2f5h3$2@dont-email.me> <108dkik$2g20p$1@dont-email.me> <108g1cg$32gqg$2@dont-email.me> <108h6b0$3a75k$2@dont-email.me> <108iiq5$3lihe$3@dont-email.me> <108mhhk$j2jt$1@dont-email.me> <108mis1$j4cj$1@dont-email.me> <108o33p$vok4$5@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Thu, 28 Aug 2025 00:00:44 +0000 (UTC) Injection-Info: dont-email.me; posting-host="6f970729dc22bef6d204ec8c3c6ab955"; logging-data="1061056"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/95F6wRPzd2X6hYVkWY75I+uA7uL4a8uE=" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:fOhz5AsLfPOJ0PeRnw09YFNcnzI= Content-Language: en-US In-Reply-To: <108o33p$vok4$5@dont-email.me> Xref: feeder.eternal-september.org comp.lang.ada:66949 List-Id: On 2025-08-28 01:07, Lawrence D’Oliveiro wrote: > On Wed, 27 Aug 2025 11:24:18 +0200, Dmitry A. Kazakov wrote: > >> Actually in Python they use a C library to call C. So it illustrates >> the opposite: you cannot call C or be called from C in Python. You >> need some FFI layer. But in Ada you can, because of an ability to >> specify conventions in Ada. > > But the most common Ada compiler, GNAT, is part of GCC, which is written > in C and C++, is it not? No. GNAT is written in Ada. > So Ada cannot actually specify those > “conventions” without the help of C/C++ code. Wrong. These are a part of the language standard ARM B. No C code involved. >> This is an unfair comparison, because Ada is a general purpose >> language. Direct hardware access is a part of Ada's functionality. > > It does it in such a clumsy way compared to C, or even Python. Example? >> Python is a mere command-line interpreter that cannot deal with >> machine specifics. > > I posted that example of some machine specifics (the mountinfo API). Machine specifics means machine data types, addresses, interrupts etc. As an example consider programming a bare board, writing an OS etc. -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de