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Path: sparky!uunet!think.com!ames!sgi!wdl1!wdl1!mab
From: mab@wdl1.wdl.loral.com (Mark A Biggar)
Subject: Re: Grouping data from different modules together
Message-ID: <1993Mar1.171045.17020@wdl.loral.com>
Sender: news@wdl.loral.com
Organization: Loral Western Development Labs
References: <1993Mar1.153217.3290@ibr.cs.tu-bs.de>
Date: Mon, 1 Mar 1993 17:10:45 GMT
Date: 1993-03-01T17:10:45+00:00
List-Id: <comp.lang.ada>

In article <1993Mar1.153217.3290@ibr.cs.tu-bs.de> hestermeyer@ida.ing.tu-bs.de (Andreas Hestermeyer) writes:
>  So far for the basic concept. To be efficient, all items of a group
>should be allocated an undivided space in memory. It is usually very
>easy to define such GROUPS in assembler language and have the linker
>taking care of grouping the data together. So each data item can be defined
>in the source code file of the module it belongs to. No extra source
>file, where all data items of a group would be defined together, is 
>needed and this serves the aspects of modularization and independance 
>very well.
>  Is there any language construct in C,C++,PASCAL,Modula or ADA to 
>support such data groups ?
>  I haven't found any. If not : why didn't anybody invent such things ?

There is a standard way to do this in all the above languages. It is called
the record stucture.  It is the standard way to group related data items
together.  This deos require that all the related data items be defined
in the same file, but if they are related enough to be grouped together, then
they are related enough to be defined together.

--
Mark Biggar
mab@wdl1.wdl.loral.com