delete HBufC causes User 42 Panic

[zhenLeow]

Hi,

When my application trys to exit, I get a User 42 Panic. When i try to trace and debug my codes, i found that this error is cause when i try to delete my HBufC object.

According to the SDK,

This panic is raised by a number of RHeap member functions, AllocLen(), Free(), FreeZ(), ReAlloc(), ReAllocL(), Adjust() and AdjustL() when a pointer passed to these functions does not point to a valid cell.

What does this mean? Am i not suppose to delete the HBufC descriptor when my application exit? How should i delete it properly?

Regards,
zhen

[ManishPatil]

Hi,

Could you please tell us which complier/IDE are you using?
Are you getting same error on device?

Manish

[zhenLeow]

Yes. I get the same error on real device. I m using SDK Series 80 Developer Platform and the IDE I am using is CodeWarrior for Symbian OS. Thanks.

[template60]

You're not deleting it twice by mistake are you? Common mistake. The trick is wherever you are deleting an object, immediately thereafter, set it to NULL.

void CMyClass::SomeFunc()
{
delete iHeapObject;
iHeapObject = NULL;

// etc
}

CMyClass::~CMyClass()
{
delete iHeapObject; // ok if this is null
}

[zhenLeow]

I tried setting to null before... but to no avail.. I m sure tat i did not delete it twice

Regards,
zhen