global parameters

global parameters

[Eugene Vigovskiy]

  Hello All.

  I'd like to ask one question.

  I've got a programm, and i'd like to read configuration from file.
  I need in some data structure for it.

  What is the best way to do it?
  
  I see at least two ways.
  
  The first is allocate a structure like this
  struct somestruct {
         param1;
         param2;
         .
         .
         paramn;
  }
  and create func what will fill and return pointer to it,  that I can use in any place.

  The Second way is to

  allocate some global variables and make them available through
  "extern" in other modules.
  Can anybody point me at advantages and disadvantages of this
  methods.
  



Eugene Vigovskiy

Re: global parameters

[Daniel]

----- Original Message -----
From: "Eugene Vigovskiy" <vigov@com2com.ru>
Newsgroups: ka.lists.linux.c.programming
Sent: Friday, April 19, 2002 9:48 AM
Subject: global parameters


>   Hello All.
>
>   I'd like to ask one question.
>
>   I've got a programm, and i'd like to read configuration from file.
>   I need in some data structure for it.
>
>   What is the best way to do it?
>
>   I see at least two ways.
>
>   The first is allocate a structure like this
>   struct somestruct {
>          param1;
>          param2;
>          .
>          .
>          paramn;
>   }
>   and create func what will fill and return pointer to it,  that I can use
in any place.
>
>   The Second way is to
>
>   allocate some global variables and make them available through
>   "extern" in other modules.
>   Can anybody point me at advantages and disadvantages of this
>   methods.
>
>
> Eugene Vigovskiy
>
> -
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I think the first one is better.
 (If you want to develope this program, you only let these modules see
the declarations that realy need them)
If it going to be small (~200 Lines) then it doesn't matter which one you
use.