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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: basic basic ada question
Newsgroups: comp.lang.ada
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Date: Thu, 19 Oct 2006 17:11:45 +0200
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Date: 2006-10-19T17:11:46+02:00
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On 19 Oct 2006 07:30:31 -0700, markww wrote:

> Can someone give me an example of a command line app where I can read
> in command line arguments?

See the package Ada.Command_Line.

> In C++ we have:
> 
> int main(int argc, char **argv)
> {
>     printf("There are [%i] arguments.\n", argc);
>     return 0;
> }
> 
> all I have so far in ada is:
> 
> 
>     with Ada.Text_IO; use Ada.Text_IO;
>     procedure DynamicArray is

   type Array_Of_Integers is array (Integer range <>) of Integer;
      -- Not necessary, but a good style. You might need a subprogram
      -- dealing with your arrays later.
   Number_Of_Elements : Natural;

>     begin
> 
>         -- Tell the user what we're doing.
>         Put_Line ("This application will allocate a dynamic array.");

   Number_Of_Elements := ...; -- use Ada.Command_Line
 
>         -- Now allocate a dynamic array.
>         Name : array (0 .. 20) of INTEGER

   declare
      My_Array : Array_Of_Integers (1..Number_Of_Elements);
   begin
      -- Do with My_Array what you have to
   end;
>         -- That's it.
> 
>     end DynamicArray;
> 
> eventually I'd like to allocate that array based on the number of
> elements passed as an argument by the user.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de