exception caused by two dimension array* destruction...

[kienzan]

Hello,

I've a Class with a two dimension array pointer. It works fine, but when I'm trying to exit from the application the emulator returns with an error "unknown software exception...".
I know this caused by the wrong destruction... (when i'm commenting out my iTable variable it works fine...)
How can i destruct a two dimension array pointer?
Why isn't enough "delete iTable;"?



my header file: ctable.h

#ifndef CTABLE_H
#define CTABLE_H
#include <e32base.h>
class CTable
{
public:
	static CTable* NewL(TInt aW, TInt aH);
	static CTable* NewLC(TInt aW, TInt aH);

	~CTable();
private:
	void ConstructL(TInt aW, TInt aH);
	CTable();
private:
	TInt8 **iTable;
};
#endif // CTABLE_H

my cpp file:

#include "ctable.h"
#include "Cascade.pan"
#include <e32math.h>

CTable* CTable::NewL(TInt aW, TInt aH){
	CTable* self = NewLC(aW,aH);
	CleanupStack::Pop();
	return self;
}
CTable* CTable::NewLC(TInt aW, TInt aH){
	CTable* self = new (ELeave)CTable();
	CleanupStack::PushL(self);
	self->ConstructL(aW,aH);
	return self;
}
void CTable::ConstructL(TInt aW, TInt aH)
{
iTable = (TInt8**) new (ELeave)(TInt8[aW]);
int i;
for(i=0;i<aW+1;i++){
iTable[i]=new (ELeave)TInt8[aH];
			}
}
CTable::CTable()
{
	//non-Leave construction
}
CTable::~CTable(){
	if(iTable){
		delete iTable;
		iTable = NULL;
	}
}

code updated.

[amitkankani]

Try this:
delete[] iTable;

hope this works... Also if u still get the error, then try getting the panic codes. How to get panic codes- u ll find enough discussions on that on this forum...

[kienzan]

Try this:
delete[] iTable;

hope this works... Also if u still get the error, then try getting the panic codes. How to get panic codes- u ll find enough discussions on that on this forum...

It's still not working...
I've tryed to enable extended errors (Emulator S60 2.0) but nothing happened.

but here is epocwind file:

Error: Icon size (25,20) in listbox different from expected size (42,29).
Error: Icon size (42,22) in listbox different from expected size (42,29).
Error: Icon size (42,22) in listbox different from expected size (42,29).
Error: Icon size (42,22) in listbox different from expected size (42,29).
Error: Icon size (25,20) in listbox different from expected size (42,29).
Error: Icon size (42,22) in listbox different from expected size (42,29).
Error: Icon size (25,20) in listbox different from expected size (42,29).
Error: Icon size (25,20) in listbox different from expected size (42,29).
FeatMgr: InitializeLibL()
SharedData: Assign to 0x10005a2b by CASCADESharedData: total allocated memory: 7864
FeatMgr: TLS increase, clients now(1)
SharedData: Assign to 0x100058ec by EikAppUiServerSharedData: total allocated memory: 7944
SharedData: Get request with key "ColPal" by EikAppUiServerSharedData: Assign to 0x100056c6 by CASCADESharedData: total allocated memory: 8184
SharedData: Get request with key "Layout" by CASCADEAknLayoutUtils: Rect width -4 > 0AknLayoutUtils: Calculated rect -4 different from one from LAF 104
SharedData: Assign to 0x100058ec by CASCADESharedData: total allocated memory: 7944
SharedData: Get request with key "ColPal" by CASCADESharedData: Assign to 0x100058ec by CASCADESharedData: total allocated memory: 7944
SharedData: Get request with key "InputLang" by CASCADEError: Icon size (25,20) in listbox different from expected size (42,29).

[amitkankani]

It's still not working...
I've tryed to enable extended errors (Emulator S60 2.0) but nothing happened.

but here is epocwind file:

Error: Icon size (25,20) in listbox different from expected size (42,29).
Error: Icon size (42,22) in listbox different from expected size (42,29).
Error: Icon size (42,22) in listbox different from expected size (42,29).
Error: Icon size (42,22) in listbox different from expected size (42,29).
Error: Icon size (25,20) in listbox different from expected size (42,29).
Error: Icon size (42,22) in listbox different from expected size (42,29).
Error: Icon size (25,20) in listbox different from expected size (42,29).
Error: Icon size (25,20) in listbox different from expected size (42,29).
FeatMgr: InitializeLibL()
SharedData: Assign to 0x10005a2b by CASCADESharedData: total allocated memory: 7864
FeatMgr: TLS increase, clients now(1)
SharedData: Assign to 0x100058ec by EikAppUiServerSharedData: total allocated memory: 7944
SharedData: Get request with key "ColPal" by EikAppUiServerSharedData: Assign to 0x100056c6 by CASCADESharedData: total allocated memory: 8184
SharedData: Get request with key "Layout" by CASCADEAknLayoutUtils: Rect width -4 > 0AknLayoutUtils: Calculated rect -4 different from one from LAF 104
SharedData: Assign to 0x100058ec by CASCADESharedData: total allocated memory: 7944
SharedData: Get request with key "ColPal" by CASCADESharedData: Assign to 0x100058ec by CASCADESharedData: total allocated memory: 7944
SharedData: Get request with key "InputLang" by CASCADEError: Icon size (25,20) in listbox different from expected size (42,29).

if u see the errors seem to be because of something else and not memory leaks or deletion in 2-dimensional array.... is there any listbox u trying to load and some icons, may be the icon sizes have to be 42x29 only !!!

debug and get to the line after which u get the crash... that will be more helpful...

[kienzan]

if u see the errors seem to be because of something else and not memory leaks or deletion in 2-dimensional array.... is there any listbox u trying to load and some icons, may be the icon sizes have to be 42x29 only !!!

debug and get to the line after which u get the crash... that will be more helpful...

i have no listbox or icons in my application...

[amitkankani]

this is your code:

#include "ctable.h"
#include "Cascade.pan"
#include <e32math.h>

CTable* CTable::NewL(TInt aW, TInt aH){
CTable* self = NewLC(aW,aH);
CleanupStack::Pop();
return self;
}
CTable* CTable::NewLC(TInt aW, TInt aH){
CTable* self = new (ELeave)CTable();
CleanupStack::PushL(self);
self->ConstructL(aW,aH);
return self;
}
void CTable::ConstructL(TInt aW, TInt aH)
{
iTable = (TInt8**) new (ELeave)(TInt8[aW]);
int i;
//for(i=0;i<aW+1;i++){
for(i=0;i<aW;i++){
iTable[i]=new (ELeave)TInt8[aH];
}
}
CTable::CTable()
{
//non-Leave construction
}
CTable::~CTable(){
if(iTable){
//delete iTable;
delete[] iTable;
iTable = NULL;
}
}



Now first change as per the red lines highlighted above.
Also make your class CTable derive from CBase.
Hope it helps and let me know

[kienzan]

this is your code:

Now first change as per the red lines highlighted above.
Also make your class CTable derive from CBase.
Hope it helps and let me know

I've changed the code, but still not working...

[amitkankani]

well then you got to debug and tell which line gives u the error.
Also make sure u derive ur class CTable from CBase ...

[kienzan]

well then you got to debug and tell which line gives u the error.
Also make sure u derive ur class CTable from CBase ...

how can i debug? i have no any IDE... i'm using only command line tools.

class CTable : public CBase
{
public:
.
.
.

[amitkankani]

how can i debug? i have no any IDE... i'm using only command line tools.

class CTable : public CBase
{
public:
.
.
.

well then use carbide (free ide) or some ide.... it will help you debug better.
If u cant use an ide, then use logging (RFileLogger) and see which part of the code is crashing. How to use RFileLogger ? there are enough discussions and examples... hunt them

[kienzan]

HERE IS THE SOLUTION:

The problem caused by a bad declaration and a bad destruction...
One of my friends helpd me (he is a cpp expert)... Thank you

And thank you too, amitkankani!

void CTable::ConstructL(TInt aW, TInt aH)
{
...
/*iTable = (TInt8**) new (ELeave)(TInt8[aW]);*/
iTable =new (ELeave)TInt8*[aW];
int i;
for(i=0;i<aW;i++){
	iTable[i]=new (ELeave)TInt8[aH];
}
...
}


CTable::~CTable(){
		int i;
		for(i=0;i<iWidth;i++){
//			delete iTable[i];
			delete[] iTable[i];
		}
		delete[] iTable;
...
}

code updated...