NewLC - Can we use C++ type array in Symbain C++ ? - Comments

Re: Can we use C++ type array in Symbain C++ ?

Andreas — Wed, 27 Feb 2008 23:00:05 +0100

If you want the simplicity of plain fixed size arrays and the safety of the bounds checking arrays, use TFixedArray:

http://www.symbian.com/developer/techlib/v70sdocs/doc_source/reference/cpp/FixedSizeArrays/TFixedArrayClass.html
http://www.symbian.com/developer/techlib/v70sdocs/doc_source/reference/cpp/FixedSizeArrays/UsingTFixedArray.guide.html

However, if you have an unknown or large number of array elements or need dynamic arrays, do as Numpty Alert suggests - use the dynamic arrays.

Re: Can we use C++ type array in Symbain C++ ?

Numpty Alert — Wed, 27 Feb 2008 22:01:46 +0100

What is the point in doing so when there are existing SYmbian arrays that are safer to use and will be compatible with the cleanup stack?

Re: Can we use C++ type array in Symbain C++ ?

jari — Wed, 27 Feb 2008 21:12:43 +0100

Instead of defining your own TCleanupItem, you might want to take a look at CleanupArrayDeletePushL function defined in e32base.h:

int* array = new(ELeave) int[10];
CleanupArrayDeletePushL(array);

// use array

CleanupStack::PopAndDestroy(); // calls delete [] array

Of course, for an array that is member of a C-class you have to explicitly call array deletion operator when deleting it.

Re: Can we use C++ type array in Symbain C++ ?

pirosl — Fri, 22 Feb 2008 14:09:08 +0100

Of course you can.
The only think you have to keep in mind is memory management. In this case, what exactly will you put on CS (probably a TCleanupItem...)

Can we use C++ type array in Symbain C++ ?

netra — Fri, 22 Feb 2008 14:07:24 +0100

Hi ,

Can we deaclare an array of pointer to objcets like this in symbian:

int i=0;
anArray[i++]=AClass:NewLC();

where anArray is declared as :

AClass* anArray[10];