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From: Will Senn <will.senn@gmail.com>
To: Adam Thornton <athornton@gmail.com>,
	Ori Idan <ori@heliconbooks.com>,
	The Eunuchs Hysterical Society <tuhs@tuhs.org>
Subject: Re: [TUHS] ratfor vibe
Date: Fri, 4 Feb 2022 11:44:09 -0600	[thread overview]
Message-ID: <f20bcfcc-292b-a9ca-4648-c7a7fe699225@gmail.com> (raw)
In-Reply-To: <CAP2nic0Cjxy9NY+rQWH=+gPXEC6sTGMNPS0wEHyph8G3yqnxyw@mail.gmail.com>

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On 2/4/22 11:35 AM, Adam Thornton wrote:
>
>
> On Thu, Feb 3, 2022 at 11:07 PM Ori Idan <ori@heliconbooks.com> wrote:
>
>     As for EOF it is 0xFF which is not always -1, depending if your
>     char is signed or unsigned.
>
>
> Ha!  You fell into my trap!  getc() returns an int!  (I don't know if 
> EOF is _always_ "all bits set", and even if it is, that's only -1 on a 
> twos-complement machine, if we want to head off into some real 
> pedantry...)
>
> The need to use feof() and ferror() at least appear in the BUGS 
> section on my Mac.  Linux is not so gracious.  The real bug, if you 
> ask me, which no one did, is that getc() and pals return an int rather 
> than a char, which is surprising and certainly has tripped me up 
> several times across the decades (and yes, I understand that since any 
> character value is a legal character to have gotten, you need some 
> other way of signalling an error).
This is prolly why the authors steadfastly refused to commit to a 
particular value for EOF. Instead, they said in essence, that it was a 
matter of agreement, convention, if you will, and that whatever value 
was chosen, it should NEVER be a legal character. I made it -1, for v7, 
cuz it worked... and I wanted so badly to get a working ratfor program 
that I sacrificed any semblance of technical rigor to make it copy a 
character, onscreen, in real time, live. Heck, and it only took me a 
couple of days to figure out all how to get it working, EOF was easy, 
STDIN and STDOUT, not so much.


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  reply	other threads:[~2022-02-04 17:45 UTC|newest]

Thread overview: 75+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-31 20:46 Will Senn
2022-02-01 15:37 ` arnold
2022-02-01 15:52   ` Ralph Corderoy
2022-02-01 16:58     ` Clem Cole
2022-02-01 17:02     ` silas poulson
2022-02-02  7:47     ` arnold
2022-02-03  5:47       ` [TUHS] more about Brian Rich Morin
2022-02-03  7:44         ` markus schnalke
2022-02-03  8:18           ` Rich Morin
2022-02-04  2:23           ` Adam Thornton
2022-02-04  2:34             ` [TUHS] more about Brian... [really Rust] Jon Steinhart
2022-02-04 13:07               ` Thomas Paulsen
2022-02-04 23:18               ` Dan Cross
2022-02-04  3:28             ` [TUHS] more about Brian Dan Stromberg
2022-02-04  5:11             ` Rich Morin
2022-02-04 21:22               ` [TUHS] Go vs. Rust, and etc. (was: more about Brian...) Greg A. Woods
2022-02-04 21:37                 ` Richard Salz
2022-02-04 22:32                   ` Steffen Nurpmeso
2022-02-04 23:05                   ` Thomas Paulsen
2022-02-04 23:15                   ` Seth J. Morabito
2022-02-05  1:41                     ` Adam Thornton
2022-02-04  7:38             ` [TUHS] more about Brian Andy Kosela
2022-02-04  8:10               ` Steve Nickolas
2022-02-04  8:44                 ` markus schnalke
2022-02-04  9:16                   ` Steve Nickolas
2022-02-04 18:54                 ` John Cowan
2022-02-04 19:45                   ` Thomas Paulsen
2022-02-04 20:28                     ` Hellwig Geisse
2022-02-04 21:03                       ` Jim Capp
2022-02-04 22:30                         ` Steffen Nurpmeso
2022-02-04 22:25                       ` Steffen Nurpmeso
2022-02-06  0:56                       ` Larry McVoy
2022-02-06  1:10                         ` Will Senn
2022-02-06  4:52                           ` Rob Pike
2022-02-06  4:58                             ` Dan Halbert
2022-02-06  5:06                             ` Will Senn
2022-02-06  6:19                             ` Ed Carp
2022-02-06  6:27                               ` Rob Pike
2022-02-06  6:40                                 ` Stuart Remphrey
2022-02-06  6:44                                 ` Bakul Shah
2022-02-06 19:08                                   ` Steffen Nurpmeso
2022-02-06 12:52                                 ` Ralph Corderoy
2022-02-06 13:14                                 ` Ed Carp
2022-02-06 14:13                                   ` Dan Cross
2022-02-06 14:15                                   ` Larry McVoy
2022-02-06 16:31                                     ` Warner Losh
2022-02-06 18:36                                     ` [TUHS] more about Brian... [ really GC vs malloc/free languages ] Jon Steinhart
2022-02-06 19:27                                     ` Jon Steinhart
2022-02-06 19:33                                       ` Warner Losh
2022-02-06 19:37                                         ` Jon Steinhart
2022-02-06 20:21                                           ` [TUHS] COFF is over there Ralph Corderoy
2022-02-06 16:16                           ` [TUHS] more about Brian Brad Spencer
2022-02-08  5:22                             ` Ed Carp
2022-02-03 18:57       ` [TUHS] ratfor vibe silas poulson
2022-02-04  8:26         ` arnold
2022-02-04 19:41           ` John Cowan
2022-02-10 15:18       ` Ralph Corderoy
2022-02-03  4:00 ` Will Senn
2022-02-03  4:31   ` Al Kossow
2022-02-03  5:16     ` Warner Losh
2022-02-03 20:00   ` Adam Thornton
2022-02-04  6:06     ` Ori Idan
2022-02-04 17:35       ` Adam Thornton
2022-02-04 17:44         ` Will Senn [this message]
2022-02-01 18:19 Noel Chiappa
2022-02-01 18:47 ` Clem Cole
2022-02-01 19:10   ` Dan Cross
2022-02-01 19:39     ` Clem Cole
2022-02-01 21:21       ` Dan Cross
2022-02-01 21:33         ` Clem Cole
2022-02-01 23:12           ` John Cowan
2022-02-01 19:39   ` Richard Salz
2022-02-01 22:30   ` Erik E. Fair
2022-02-02  0:54     ` Yeechang Lee
2022-02-01 21:50 ` Win Treese

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