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From: Niklas Holsti <niklas.holsti@tidorum.invalid>
Subject: Re: xor
Date: Sun, 25 Mar 2012 17:01:45 +0300
Date: 2012-03-25T17:01:45+03:00	[thread overview]
Message-ID: <9t8mq9Fla4U1@mid.individual.net> (raw)
In-Reply-To: <Pine.GSO.4.64.1203251449001.1390@kodiak1>

On 12-03-25 17:28 , Michael Moeller wrote:
> Hi,
>
> I'm wondering what this code in C looks like translated to Ada:
>
> unsigned char x, y, z;
> ...
> z = x ^ y;
> ...
>
> Oddly enough, none of the manuals I have covers simple numerical
> xor of two numbers stored in variables.

Use a modular integer type to get the XOR operation:

-- begin example
procedure Show_Xor
is
    type Unsigned_Byte_T is mod 256;
    x, y, z : Unsigned_Byte_T;
begin
    x := 26;
    y := 33;
    z := x xor y;
end Show_Xor;
--end example


If you also want shift and rotate operations, start from the types 
defined in the Interfaces package, such as Interfaces.Unsigned_8 and 
other sizes.

-- 
Niklas Holsti
Tidorum Ltd
niklas holsti tidorum fi
       .      @       .



  reply	other threads:[~2012-03-25 14:01 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-25 14:28 xor Michael Moeller
2012-03-25 14:01 ` Niklas Holsti [this message]
2012-03-25 15:16   ` xor Michael Moeller
2012-03-25 19:05     ` xor Dmitry A. Kazakov
2012-03-27 20:31       ` xor Michael Moeller
2012-03-25 19:26     ` xor Niklas Holsti
2012-03-27 20:09       ` xor Michael Moeller
2012-03-27 19:44         ` xor Dmitry A. Kazakov
2012-03-27 21:16           ` xor Michael Moeller
2012-03-27 21:14             ` xor Simon Wright
2012-03-27 22:56               ` xor Michael Moeller
2012-03-27 22:03             ` xor Georg Bauhaus
2012-03-27 23:50               ` xor Michael Moeller
     [not found]                 ` <bbedne9wdofZyu_SnZ2dnUVZ_hydnZ2d@earthlink.com>
2012-03-28 12:18                   ` xor Michael Moeller
2012-03-28 12:48                     ` xor Georg Bauhaus
2012-03-28 15:23                       ` xor Michael Moeller
2012-03-28 15:58                         ` xor Niklas Holsti
2012-03-28 17:28                           ` xor Michael Moeller
2012-03-28 23:25                           ` xor Randy Brukardt
2012-03-29  5:17                             ` xor Niklas Holsti
2012-03-29 23:41                               ` xor Randy Brukardt
2012-03-30 21:53                                 ` xor Niklas Holsti
     [not found]                         ` <jtmdnfjWWsUYoO7SnZ2dnUVZ_gSdnZ2d@earthlink.com>
2012-03-28 17:44                           ` xor Michael Moeller
2012-03-28 14:07                     ` xor Dmitry A. Kazakov
2012-03-28 16:16                       ` xor Michael Moeller
2012-03-28 16:08                         ` xor Dmitry A. Kazakov
2012-03-28 17:36                           ` xor Michael Moeller
     [not found]                             ` <tdadna1MV6uj5O7SnZ2dnUVZ_jidnZ2d@earthlink.com>
2012-03-28 21:48                               ` xor Georg Bauhaus
2012-03-29  7:43                               ` xor Dmitry A. Kazakov
2012-03-29  7:49                               ` xor Simon Wright
2012-03-27 21:28           ` xor Georg Bauhaus
2012-03-27 19:50         ` xor Randy Brukardt
2012-03-27 21:44           ` xor Michael Moeller
2012-03-27 22:01             ` xor Georg Bauhaus
2012-03-27 20:13         ` xor Jeffrey Carter
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