Re: Memory Leak - TForm or TStringGrid or DynamicArray - Article 2503 - go-pugleaf

Article View: borland.public.cppbuilder.nativeapi

Article #2503

Back to borland.public.cppbuilder.nativeapi Previous Next

Re: Memory Leak - TForm or TStringGrid or DynamicArray

#2503

From: Dan Mayo
Date: Thu, 08 Feb 2007 22:51

37 lines
2416 bytes

Dan Mayo wrote:
> Alan Bellingham wrote:
>  >     std::auto_ptr<TSubForm> Foo(new TSubForm(this));
> 
Ok, I have went thru all of my code and have changed to auto_ptrs for 
the most part; and in places where I still need to use the pointer, I 
have been sure to initialize it so that I don't attempt to delete a 
pointer that hasn't been initialized.

The frequency of 'Out of Resources' messages has been reduced by this 
change; but it still occurs, and it is in the same spot; except this 
time rather that failing on a TSubForm *newform = new TSubForm(this); 
it's failing on a std::auto_ptr<TSubForm> newform(TSubForm(this)); call.

Any additional ideas are greatly appreciated.

Thanks.

On a side note, is the following valid?

TSubForm *SubFormICanReferenceSomewhereElse = NULL;

void DoSomething()
{
   if (SubFormICanReferenceSomewhereElse)
   {
     //do something with the SubFormICanReferenceSomewhereElse
   }
}

void function()
{
   std::auto_ptr<TSubForm> newform(TSubForm(this));
   SubFormICanReferenceSomewhereElse = &*newform;
   DoSomething();
   SubFormICanReferenceSomewhereElse = NULL;
}

Technical Details

Message-ID: <45cba995$1@newsgroups.borland.com>

Path:

arc1-ca.pugleaf.net!g2news2.google.com!news2.google.com!news4.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!wns13feed!worldnet.att.net!64.192.187.27!news.glorb.com!newsfeeds.ihug.co.nz!ihug.co.nz!newsgroups.borland.com!not-for-mail

References:

<45c7810f@newsgroups.borland.com> <45c7dc8d$1@newsgroups.borland.com> <45c89ec6@newsgroups.borland.com> <45ca4546$1@newsgroups.borland.com> <0sqks2t4c90epuc62bv635h36cqeat0ujd@4ax.com> <45cb3451$1@newsgroups.borland.com> <ptems2p2k2rquqdiao805ik2fhg6jl9n9a@4ax.com> <45cb5f6b@newsgroups.borland.com>

Show Full Headers

Complete Article Headers

X-Google-Thread: 10cc67,191a7d21d69bde32
X-Google-Attributes: gid10cc67,public
X-Google-Language: ENGLISH,ASCII-7-bit
Date: Thu, 08 Feb 2007 16:51:03 -0600
From: Dan Mayo <do_not_spam_dmayo2@netzero.com>
User-Agent: Thunderbird 1.5.0.9 (Windows/20061207)
MIME-Version: 1.0
Newsgroups: borland.public.cppbuilder.nativeapi
Subject: Re: Memory Leak - TForm or TStringGrid or DynamicArray
References: <45c7810f@newsgroups.borland.com> <45c7dc8d$1@newsgroups.borland.com> <45c89ec6@newsgroups.borland.com> <45ca4546$1@newsgroups.borland.com> <0sqks2t4c90epuc62bv635h36cqeat0ujd@4ax.com> <45cb3451$1@newsgroups.borland.com> <ptems2p2k2rquqdiao805ik2fhg6jl9n9a@4ax.com> <45cb5f6b@newsgroups.borland.com>
In-Reply-To: <45cb5f6b@newsgroups.borland.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
NNTP-Posting-Host: 216.174.165.174
Message-ID: <45cba995$1@newsgroups.borland.com>
X-Trace: newsgroups.borland.com 1170975125 216.174.165.174 (8 Feb 2007 14:52:05 -0800)
Lines: 37
Path: arc1-ca.pugleaf.net!g2news2.google.com!news2.google.com!news4.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!wns13feed!worldnet.att.net!64.192.187.27!news.glorb.com!newsfeeds.ihug.co.nz!ihug.co.nz!newsgroups.borland.com!not-for-mail

Reply to Parent Message