Re: délcarer un array sans indices.

[Jean-Baptiste CAMPESATO <camje_lemon@nospam.a2lf.org>]

Le Sun, 20 Mar 2005 14:36:04 +0000, Adrian Knoth a ￜcritￜ:

> Jean-Baptiste CAMPESATO <camje_lemon@nospam.a2lf.org> wrote:
> 
>> Par exemple, j'ai le type :
>> type Matrice is array ( Integer range <>, Integer range <>) of Float; 
>> Je souhaite dï¿œclarer une variable gauss, sans indices, de type Matrice et
>> plus tard dans le programme, suite a une intervention de l'utilisteur
>> donner les indices adï¿œquates.
> 
> Sorry for not answering en franï¿œaise, I hope you'll still be able
> to understand the response:
> 
> procedure jean is
>    type Matrice is array ( Integer range <>, Integer range <>) of Float;
> 
>    procedure something (a, b, c, d : in Positive ) is
>       gauss : Matrice (a .. b, c .. d);
>    begin
>       null;
>    end something;
> 
>    a, b, c, d : Positive;
> 
> begin
>    a := 1;
>    b := 300;
>    c := 1;
>    d := 200;
>    something (a, b, c, d);
> end jean;
> 
> Just ask your user about the real values of a,b,c,d. For a large
> matrix it could be better to allocate heap memory:
> 
>    type Matrice_ptr is access Matrice;
>    gauss : Matrice_ptr := new Matrice (a .. b, c .. d);

Scuse for post in French, my problem is not exactly that.
My problem is :
I created a type : Matrice.
I want create a variable of Matrice (gauss:Matrice;) when we execute my
programm
But i don't know the range of my matrix. The user will give me
the number of range after.
How can i create a Array without range and after give to the programme the
range ?
thanks a lot