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From: mcc@entropy.cs.princeton.edu (Martin C. Carlisle)
Subject: Re: Unbounded string deallocation
Date: 1999/08/25
Date: 1999-08-25T00:00:00+00:00	[thread overview]
Message-ID: <7q1tff$1n9$1@cnn.Princeton.EDU> (raw)
In-Reply-To: 37C46FD4.A42CC1A1@res.raytheon.com

Actually, the great thing about Ada.Strings.Unbounded is that the
LRM requires it not to leak memory.  See LRM A.4.5(88).
This means that when an unbounded string is reassigned, or goes out of 
scope, the memory will be reclaimed.

To use it for a brief period of time, use a declare block.

--Martin

In article <37C46FD4.A42CC1A1@res.raytheon.com>,
Andy Askey  <askeya@res.raytheon.com> wrote:
>I am looking into using Ada.Strings.Unbounded for dynamically creating
>temporary storage of character arrays.  When I am finished processing
>the string, I want to deallocate it.  I found a "Free" routine in the
>spec but this uses a pointer to STRING and not UNBOUNDED_STRING.
>
>From the Apex ada.strings.unbounded.1.ada =>
>
> type Unbounded_String is private;
> type String_Access is access all String;
> procedure Free (X : in out String_Access);
>
>Can anyone help me out with the deallocation?  Anyone have a better idea
>for dynamically allocating and deallocating memory for a small to medium
>size byte array?
>
>Thanx.
>-- 
>---------------------------------------------------
>|                 Andy Askey                      |
>|              Software Engineer                  |
>|           Raytheon Systems Company              |
>|   670 Discovery Drive, Huntsville, AL  35806    |
>|   Phone: (256) 971-2367  Fax: (256) 971-2306    |
>|        andrew_j_askey@res.raytheon.com          |
>---------------------------------------------------


-- 
Martin C. Carlisle, Asst Prof of Computer Science, US Air Force Academy
carlislem@acm.org, http://www.usafa.af.mil/dfcs/bios/carlisle.html
DISCLAIMER:  This content in no way reflects the opinions, standards or 
policy of the US Air Force Academy or the United States Government.




  reply	other threads:[~1999-08-25  0:00 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1999-08-25  0:00 Unbounded string deallocation Andy Askey
1999-08-25  0:00 ` Martin C. Carlisle [this message]
1999-08-26  0:00   ` Andy Askey
1999-08-26  0:00     ` Andy Askey
1999-08-26  0:00     ` David C. Hoos, Sr.
     [not found]     ` <37c552fd@news1.us.ibm.net>
1999-08-26  0:00       ` Michael F. Yoder
1999-08-26  0:00       ` Marin David Condic
1999-08-29  0:00         ` Robert Dewar
1999-08-30  0:00           ` Marin David Condic
1999-08-30  0:00             ` Robert Dewar
1999-08-26  0:00     ` Martin C. Carlisle
1999-08-26  0:00   ` Pascal Obry
1999-08-26  0:00 ` David C. Hoos, Sr.
1999-08-30  0:00 ` Andy Askey
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