From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FROM,MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 925 invoked from network); 26 Mar 2023 15:11:10 -0000 Received: from minnie.tuhs.org (2600:3c01:e000:146::1) by inbox.vuxu.org with ESMTPUTF8; 26 Mar 2023 15:11:10 -0000 Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id 8B59C41285; Mon, 27 Mar 2023 01:11:04 +1000 (AEST) Received: from mail-pf1-x42c.google.com (mail-pf1-x42c.google.com [IPv6:2607:f8b0:4864:20::42c]) by minnie.tuhs.org (Postfix) with ESMTPS id D3AEA41267 for ; Mon, 27 Mar 2023 01:10:58 +1000 (AEST) Received: by mail-pf1-x42c.google.com with SMTP id u38so3980050pfg.10 for ; Sun, 26 Mar 2023 08:10:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; t=1679843458; h=cc:to:subject:message-id:date:from:references:in-reply-to :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=DSyOq3/qxGxOaExISyEVzfXSeqbsdRNhDiOfznFpvdQ=; b=ODjLugGzUlhP1L5CAEAwSKDoYfrx6w4ge2CsmyHO3ye8A28zfcWeb4KF+1VIY/0s3D uuK4Xfc1vQPLpmNa11UVIcmHCrl7ICO9v0L7oOAFBkLv7oYo14LqZA9fvh8qjT60uuFk 456j9A2abIDw51UanaZPNsDt47wOf5ZJuDw7eh8Sd0za11YCEmZdQYzEaGOt71R4SFc+ cKLbR/64wBUnRYxSaVr3IcF29MqjVGpv4gu0hJUmdca1hR3yVRJvtsXXWB2CUDJX+8j6 njRm0h6HIzT+5WWP1P+8JXRwWN7vY/v2Lq7Xb3fZKHkU9rhZx9JgGcrose20g7up/Fxv sQYA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679843458; h=cc:to:subject:message-id:date:from:references:in-reply-to :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=DSyOq3/qxGxOaExISyEVzfXSeqbsdRNhDiOfznFpvdQ=; b=Q3TKRojEkH3lUwfN3110trybUcMNArAwQq3Bfs7oI4w+v+yfmG98SoDEO5HMA4+4fv iJAM/jkrBy12czIKPnApXMAwho8n1iWKnI89kYYfkRZg8jCBc3nMqn5InkjrKTJ2sS/U MbyjR3G09PO/ZyJcy4nyl522//JtlE/Alo/wtlaX7nQDWZM50cXJ+1BpSGi/zNxizLqt OQEDZ1L42Kp//mDHzprsD0NOVjUYeOcm5N2p+1oS4zHObcniOnd011lRqg5/z2g1wwnJ Gw8ouRfXOFRllBq+6/WNSe46ifvWIOEzGJyppcmVtdjvlfUKi64nKCKGC2ZgkUrVjfLl J1og== X-Gm-Message-State: AAQBX9ccRDkXc1AOr/+SG0IztXBavGlCk77QGcX08W+VzBHn77H4FPd/ ue8kS9YnW67yyBNZXIfTDeXM15mRZ64mhsw4W7fxFGD1 X-Google-Smtp-Source: AKy350aZZIe8158eb+78yHdFQXV3YaKXd9JIrCdEoEAqVVxq5g4RQgIp5tCaAqohmbIAkhMJ9F1AKjVHEPojXVSa8G4= X-Received: by 2002:a05:6a00:1881:b0:625:659e:65c with SMTP id x1-20020a056a00188100b00625659e065cmr4944484pfh.1.1679843458000; Sun, 26 Mar 2023 08:10:58 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:a05:6a10:ce9e:b0:3bc:b7f6:895e with HTTP; Sun, 26 Mar 2023 08:10:57 -0700 (PDT) In-Reply-To: References: From: Paul Winalski Date: Sun, 26 Mar 2023 11:10:57 -0400 Message-ID: To: KenUnix Content-Type: text/plain; charset="UTF-8" Message-ID-Hash: 4HB2P7QJY5Q44ZMOTHDHJ354FMAZTOC4 X-Message-ID-Hash: 4HB2P7QJY5Q44ZMOTHDHJ354FMAZTOC4 X-MailFrom: paul.winalski@gmail.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: UNIX TUHS Group X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Re: Fortran question for Unix System-5 r3 List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: [already answered in COFF, but since it is Unix-related I'll answer here as well] On 3/26/23, KenUnix wrote: > Fortran question for Unix System-5 r3. > > When executing fortran programs requiring input the screen will > show a blank screen. After entering input anyway the program > completes under Unix System V *r3*. > > When the same program is compiled under Unix System V *r1* it > works as expected. > > Sounds like on Unix System V *r3* the output buffer is not being flushed. > I tried re-compiling F77. No help. The bug is almost certainly in the Fortran run-time library (RTL), not in the compiler, so rebuilding the compiler won't help. As a compiler engineer for many years, this regression bug got me curious as to the software development processes in place for Unix System V. How was testing and release qualification done for f77 and other utilities released with System V? Was an automated test system used? Were reported and fixed bugs turned into regression tests? Apropos this regression bug in particular, what testing of interactive functionality was done, and how was it done? Automating interactive testing can be cussedly difficult. -Paul W.