sorted arrays

Paul Potok

Delphi Developer

Fri, 19 Jun 1998 03:00:00 GMT

dynamic arrays/sorted arrays

Is it true that you cannot create dynamic arrays with Pascal/Delphi?
Does anyone have a workaround for this? How does one sort arrays in
Pascal? I formerly used the Container Class Libraries as found in
Borland C++ for both of these duties. Is there anything analogous
to container classes available to Delphi projects?

Slobodan Celenkovi

Delphi Developer

Sat, 20 Jun 1998 03:00:00 GMT

Re:dynamic arrays/sorted arrays

Quote

Paul Potok <ppo...@ix.netcom.com> wrote:
>Is it true that you cannot create dynamic arrays with Pascal/Delphi?

Of course you can create dynamic arrays. See Get/FreeMem.

Quote

>Does anyone have a workaround for this? How does one sort arrays in
>Pascal? I formerly used the Container Class Libraries as found in
>Borland C++ for both of these duties. Is there anything analogous
>to container classes available to Delphi projects?

I didn't see one yet. I wrote my own. Borland Pascal used to have
TCollection. Delphi seems to be using a linked list.

Alain Rasse

Delphi Developer

Sun, 21 Jun 1998 03:00:00 GMT

Re:dynamic arrays/sorted arrays

Quote

Paul Potok wrote:

> Is it true that you cannot create dynamic arrays with Pascal/Delphi?
> Does anyone have a workaround for this? How does one sort arrays in
> Pascal? I formerly used the Container Class Libraries as found in
> Borland C++ for both of these duties. Is there anything analogous
> to container classes available to Delphi projects?Hi Paul

Not true. For a simple dynamic array use TList in Delphi. It's a class
that can be adressed like an array. In BP 7 use TCollection, it has a
sort method to, and for Delphi you can download my OBJECTS7 unit from
http://sunsite.icm.edu.pl/~robert/delphi/freelib.html

it reimplements TCollection under Delphi with some extrea stuff.

Best regards

Guy Fink (By kind permission of Alain Rassel)

Ray Lischn

Delphi Developer

Mon, 22 Jun 1998 03:00:00 GMT

Re:dynamic arrays/sorted arrays

On 2 Jan 1996 21:10:44 GMT, Slobodan Celenkovic <slobo...@cs.unh.edu>
wrote:

Quote

>Paul Potok <ppo...@ix.netcom.com> wrote:
>>Does anyone have a workaround for this? How does one sort arrays in
>>Pascal? I formerly used the Container Class Libraries as found in
>>Borland C++ for both of these duties. Is there anything analogous
>>to container classes available to Delphi projects?

>I didn't see one yet. I wrote my own. Borland Pascal used to have
>TCollection. Delphi seems to be using a linked list.

The TList class that Delphi uses for variable sized arrays uses an
array implementation, not a linked list implementation. It does not,
however, have any sorting built into it.

TStringList has sorting built in, if you want a list of strings.
Again, TStringList uses an array implementation, not a linked list
implementation.
--
Ray Lischner (li...@tempest-sw.com)
Tempest Software, Corvallis, Oregon, USA

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