unhandled exception in _CrtIsValidHeapPointer

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

Aravindakumar - 24 Sep 2003 09:04 GMT

i am using a static library dll , for the static library i
am passing a reference of STL list( list of STL string )
which fills the list. when i clear the list in the client
side i am getting unhandled exception in
_CrtIsValidHeapPointer in dbgheap.c( the exception
occuring only in debug mode ) ..

version : Visual Studio .net 2003
I am setting MDd option in c++ \code generation\Runtime
library

How can overcome the problem ?

Reply to this Message

Liu Xiong [MSFT] - 29 Sep 2003 19:10 GMT

--------------------

> Content-Class: urn:content-classes:message
> From: "Aravindakumar" <aravind_accet@yahoo.com>
[quoted text clipped - 13 lines]
> Path: cpmsftngxa06.phx.gbl
> Xref: cpmsftngxa06.phx.gbl

microsoft.public.dotnet.languages.vc.libraries:2429

> NNTP-Posting-Host: TK2MSFTNGXA14 10.40.1.166
> X-Tomcat-NG: microsoft.public.dotnet.languages.vc.libraries
[quoted text clipped - 13 lines]
> How can overcome the problem ?
>

Did you compile your dll and client code with the same compiler options?
If yes, how did you create the list reference in the client side?

Try to create the list reference in the crt heap: list<string> *l = new
list<string>;
and pass *l to the dll function.

Thanks

Liu Xiong, Visual C++ Team
This posting is provided AS IS with no warranties, and confers no rights.

Reply to this Message

Aravindakumar - 01 Oct 2003 14:07 GMT

I am creating the list in CRT heap in the same way you
have mentioned
(
>list<string> *l = new
>list<string>;
>and pass *l to the dll function.
}
But the library is 7.0 .net compiled and the client
in .net 2003 where it will be a problem for this issue ??

>-----Original Message-----
>
[quoted text clipped - 48 lines]
>
>.

Reply to this Message

"Pranish Kumar [VC++ MSFT]" - 02 Oct 2003 19:58 GMT

Allocating memory from one version of the CRT and deallocating from another
is not supported and is likely the cause of this problem.

--------------------

>Content-Class: urn:content-classes:message
>From: "Aravindakumar" <aravind_accet@yahoo.com>
>Sender: "Aravindakumar" <aravind_accet@yahoo.com>
>References: <d39f01c38272$78032320$a601280a@phx.gbl>

<WVMVAUrhDHA.2332@cpmsftngxa06.phx.gbl>

>Subject: RE: unhandled exception in _CrtIsValidHeapPointer
>Date: Wed, 1 Oct 2003 06:07:16 -0700
[quoted text clipped - 10 lines]
>Path: cpmsftngxa06.phx.gbl
>Xref: cpmsftngxa06.phx.gbl

microsoft.public.dotnet.languages.vc.libraries:2473

>NNTP-Posting-Host: TK2MSFTNGXA08 10.40.1.160
>X-Tomcat-NG: microsoft.public.dotnet.languages.vc.libraries
[quoted text clipped - 72 lines]
>>
>>.

Pranish Kumar, Microsoft Visual C++ Team
This posting is provided "AS IS" with no warranties, and confers no rights.
Use of included script samples are subject to the terms specified at
http://www.microsoft.com/info/cpyright.htm

Reply to this Message

Rate this thread:

unhandled exception in _CrtIsValidHeapPointer

Free Magazines