From: "Jeffrey R. Carter" <spam.jrcarter.not@spam.not.acm.org>
Subject: Re: How to write "Hello" to a text file without a line terminator
Date: Sun, 14 Aug 2016 09:39:49 -0700
Date: 2016-08-14T09:39:49-07:00 [thread overview]
Message-ID: <noq6sq$5au$1@dont-email.me> (raw)
In-Reply-To: <lyvaz321nv.fsf@pushface.org>
On 08/14/2016 01:30 AM, Simon Wright wrote:
> AdaMagica <christ-usch.grein@t-online.de> writes:
>
>> Am Samstag, 13. August 2016 20:03:51 UTC+2 schrieb Jeffrey R. Carter:
>>> $ ./str_seq_io
>>> 32
>>> $ hd junk
>>> 00000000 06 00 00 00 00 00 00 00 61 62 63 64 65 66 |........abcdef|
>> ???? -- Letters 'A' through 'Z' are at positions 65 through 90 ????
>
> 'hd' is (probably) Carter's alias for 'hexdump -C' - the values are in
> hex. And, those are letters 'a' .. 'z', not 'A' .. 'Z'.
Close. "man hd" gives (Linux Mint 18)
HEXDUMP(1) BSD General Commands Manual HEXDUMP(1)
NAME
hexdump, hd — ASCII, decimal, hexadecimal, octal dump
SYNOPSIS
hexdump [-bcCdovx] [-e format_string] [-f format_file] [-n length]
[-s skip] file ...
hd [-bcdovx] [-e format_string] [-f format_file] [-n length] [-s skip]
file ...
...
-C Canonical hex+ASCII display. Display the input offset in hexa‐
decimal, followed by sixteen space-separated, two column, hexa‐
decimal bytes, followed by the same sixteen bytes in %_p format
enclosed in ``|'' characters.
Calling the command hd implies this option.
And 16#61# = 10#97# = Character'Pos ('a').
Sorry for confusing AdaMagica.
> Come to think of it, what would the use case be for instantiating
> Sequential (or Direct) IO with an unconstrained type? they both have
> only procedural forms for Read, so how could you ever retrieve a value?
The unknown-discriminants notation [(<>)] indicates that indefinite types may be
used. String is both indefinite and unconstrained, but a variant record with a
defaulted discriminant is definite and unconstrained. I don't see much use for
Sequential_IO with an indefinite type. On reading, the objects read into would
have to match the objects written.
--
Jeff Carter
"Frankie Wolf, wanted by Federal authorities for
dancing with a mailman."
Take the Money and Run
143
next prev parent reply other threads:[~2016-08-14 16:39 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-12 4:05 How to write "Hello" to a text file without a line terminator Jerry
2016-08-12 6:41 ` G.B.
2016-08-12 7:23 ` Dmitry A. Kazakov
2016-08-12 7:41 ` J-P. Rosen
2016-08-12 7:46 ` Jerry
2016-08-12 7:44 ` Jerry
2016-08-12 17:34 ` Jeffrey R. Carter
2016-08-13 3:21 ` Jerry
2016-08-13 4:23 ` Jeffrey R. Carter
2016-08-13 9:12 ` AdaMagica
2016-08-13 18:03 ` Jeffrey R. Carter
2016-08-14 7:58 ` AdaMagica
2016-08-14 8:30 ` Simon Wright
2016-08-14 8:54 ` Dmitry A. Kazakov
2016-08-14 9:40 ` Simon Wright
2016-08-14 10:17 ` Dmitry A. Kazakov
2016-08-14 11:28 ` Simon Wright
2016-08-14 13:31 ` Dmitry A. Kazakov
2016-08-15 23:35 ` Randy Brukardt
2016-08-14 13:28 ` AdaMagica
2016-08-14 13:54 ` Simon Wright
2016-08-14 17:05 ` Jeffrey R. Carter
2016-08-14 18:26 ` AdaMagica
2016-08-14 19:19 ` Dmitry A. Kazakov
2016-08-14 13:32 ` AdaMagica
2016-08-14 16:39 ` Jeffrey R. Carter [this message]
2016-08-12 7:46 ` Simon Wright
[not found] ` <noka54$ci$1@dont-email.me>
2016-08-12 13:44 ` Dmitry A. Kazakov
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