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From: Martin Krischik <krischik@users.sourceforge.net>
Newsgroups: comp.lang.ada
Subject: Re: Ann: UnZip-Ada v.20
Date: Mon, 19 Mar 2007 14:19:53 +0100
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Date: 2007-03-19T14:19:53+01:00
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Jacob Sparre Andersen schrieb:
> Harald Korneliussen found the code:
> 
>>   -- Codes for methods
>>
>>   stored:    constant:= 0;
>>   shrunk:    constant:= 1;
>>   reduced_1: constant:= 2;
>>   reduced_2: constant:= 3;
>>   reduced_3: constant:= 4;
>>   reduced_4: constant:= 5;
>>   imploded:  constant:= 6;
>>   deflated:  constant:= 8;
>>
>>   SupportedMethods: constant:=
>>     2 ** stored    + 2 ** shrunk    +
>>     2 ** reduced_1 + 2 ** reduced_2 +
>>     2 ** reduced_3 + 2 ** reduced_4 +
>>     2 ** imploded  +
>>     2 ** deflated;
> 
> Looks like something I might write:
> 
>    type Method_Codes (Stored,
>                       Shrunk,
>                       reduced_1,
>                       reduced_2,
>                       reduced_3,
>                       reduced_4,
>                       imploded,
>                       deflated);

for Method_Codes use (
     Stored:    => 0,
     Shrunk:    => 1,
     Reduced_1: => 2,
     Reduced_2: => 3,
     Reduced_3: => 4,
     Reduced_4: => 5,
     Imploded:  => 6,
     Deflated:  => 8);

>    type Method_Support is array (Method_Codes) of Boolean;
>    pragma Pack (Method_Support);
> 
>    Supported_Methods : constant Method_Support := (others => True);
> 
> Any reason not to do it like this?

Can't think of any.

Martin