Re: Q: memory management

[jsa@organon.com (Jon S Anthony)]

In article <uvv4tod9j9e.fsf@chaq.informatik.uni-tuebingen.de> Hannes Haug <Hannes.Haug@Student.Uni-Tuebingen.de> writes:

> I'm new to Ada and have a question on memory management. Is
> there a function like malloc in Ada ? I want just a pointer
> to a certain amount of raw storage.

the reserved word _new_ in an allocator context.  For example,

procedure Junk is

    type string_ref is access string;

    -- Dynamically allocate a string...
    --
    msg : string_ref := new string'(Hello Marion, is that you?);
....
end Junk;


> I think "new Storage_Array (n)" will give me a little bit too
> much storage. The array bounds need some space.

I don't know what "storage_array" is, but don't worry about the
space for bounds.  It's all taken care of for you.


> Does "Allocate (some_storage_pool, addr, n, Word_Size / Storage_Unit)"
> work ? Which storage pool do I have to choose ?

At this point don't worry about user defined storage pools and
allocation/deallocation.  Just use the standard predefined ones.
Have a look at access types in the rationale or in the Lovelace
tutorial:

http://lglwww.epfl.ch/Ada/

/Jon
-- 
Jon Anthony
Organon Motives, Inc.
1 Williston Road, Suite 4
Belmont, MA 02178

617.484.3383
jsa@organon.com