I guess it has to be the need for a NUL terminating a c-string.
But now what is the 38 in the following:
hexdump 3!:1 (<'test'),<'abcd'
00 E1 00 00 00-20 00 00 00 02 00 00 00-01 00 00 00 │...
.........│
10 02 00 00 00-1C 00 00 00 38 00 00 00-E1 00 00 00
│... ...8......│
20 02 00 00 00-04 00 00 00 01 00 00 00-04 00 00 00
│............│
30 74 65 73 74-00 00 00 00 E1 00 00 00-02 00 00 00
│test..........│
40 04 00 00 00-01 00 00 00 04 00 00 00-61 62 63 64
│.........abcd│
50 00 00 00 00 │....
│
I am trying to use the Simple Socket Server class from a non-J
environment. Since this class rests on 3!:1 and it is preferable
to use it as it is, I need to emulate 3!:1. Having a model in J
would help.
The Simple Socket Client/Server classes and the related lab
are clear and simple. Thanks, Eric!
Gilles
---------- Original Message -----------
From: "Gilles Kirouac" <[EMAIL PROTECTED]>
To: Beta forum <[email protected]>
Sent: Mon, 14 Aug 2006 02:08:17 -0400
Subject: [Jbeta] 3!:1 and 3!:3 What are these zeros?
> Are the terminating zeros padding?
> When are four zeros added?
> The terminating byte should be a zero
> padded to the full word: is this the rule?
> I do not see those zeros mentioned in the doc.
>
> 3!:3 '123'
> e1000000
> 02000000
> 03000000
> 01000000
> 03000000
> 31323300
> 3!:3 '1234'
> e1000000
> 02000000
> 04000000
> 01000000
> 04000000
> 31323334
> 00000000
> 3!:3 '12345'
> e1000000
> 02000000
> 05000000
> 01000000
> 05000000
> 31323334
> 35000000
> 3!:3 '12345678'
> e1000000
> 02000000
> 08000000
> 01000000
> 08000000
> 31323334
> 35363738
> 00000000
>
> Gilles
>
> ----------------------------------------------------------------------
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------- End of Original Message -------
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