Re: Beginer problem: variable array size

["Nacho" <NACHANGA@terra.es>]

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That does not resolve the problem. I need to change the size of the array
after it has been created. With your solution once array_called_p has been
created it will never change its size.

I need this:

 ... preceding Ada statements
 declare -- scope of array_called_p
     type my_array_type is array ( positive range <> ) of integer;
     array_called_p : my_array_type ( 1 .. variable );
 begin -- scope of array_called_p
     ... Ada statements that use array_called_p

    variable := variable+50;    -- We increase the size of the array in 50
elementes
    ....    HERE I need array_called_p to increase its size so it can hold
50 more elements

 end; -- scope of array_called_p
 ... following Ada statements




The solution in c++ is easy as I posted before. Simply free the memory and
reserve new memory to hold the new size of the array.




"Larry Kilgallen" <Kilgallen@SpamCop.net> escribi� en el mensaje
news:HFiRcRlG5JiR@eisner.encompasserve.org...
> In article <am26u4$d2q$1@nsnmpen2-gest.nuria.telefonica-data.net>, "Nacho"
<NACHANGA@terra.es> writes:
> > Hi everyone!
> >
> > I am learning ada and i have to implement an array of unknown size until
> > rutime.
> > The array must be resizable at runtime. This is easy to achieve for me
in
> > other lenguajes like c++, but i am new to ada and i don't know hot to
> > resolve the problem. The solution in c++ code could be:
> >
> >
> >
> > int variable=50;    //let's make an array of 50 elements.
> > int* p;    //pointer to int, if the array is of integers.
> > p=new int[variable];    //we reserve memory for 50 integers.
> >
> >
> > ....  //some code with the array here.
> >
> > delete [] p;    //we free the allocated memory for the array.
> > variable=80;    //we change the size of the array.
> > p=new int[variable];    //we have a new array with the new size.
>
> Wow, C looks like a lot of work !!!!!
>
> ... preceding Ada statements
>
> declare -- scope of array_called_p
>     type my_array_type is array ( positive range <> ) of integer;
>     array_called_p : my_array_type ( 1 .. variable );
> begin -- scope of array_called_p
>     ... Ada statements that use array_called_p
> end; -- scope of array_called_p
>
> ... following Ada statements
>
> In general, Ada rarely requires pointers.