Descriptor problem

[nmnir]

Hi All,

I have a function that manipulates buffers:

void foo (TDes8 & a_buffer1, TDes8 & a_buffer2 )

How do I define the objects for that function???

Thanks,
Nahum

[ltomuta]

Strange question ... but if I got it right here's a possible answer:

TBuf8<30> oneBuffer;
HBufC8* anotherBuffer = HBufC8::NewLC(30);

...
TPtr8 ptr = anotherBuffer->Des();
foo(oneBuffer, ptr);
...

CleanupStack::PopAndDestroy(anotherBuffer);

[nmnir]

Thanks ltomuta,

You got it right but the code is not compiling:

void foo ( TDes8 & a_buffer ) {}

HBufC8 * buffer = HBufC8::NewL ( 16 ) ;

foo ( buffer->Des() ) is not compiling. The compiler output is:
function call '[TParser].foo(TPtr8)' does not match
'TParser::foo(TDes8 &)' (non-static)

Nahum

[ltomuta]

I think I've wrote

foo(/*oneBuffer,*/ ptr);

and not

foo(anotherBuffer->Des());

It isn't exactly the same thing ... Then, are you sure that you need HBufC rather than TBuf ? If so RBuf may be a better option if your SDK supports it.

[nmnir]

Thanks,

I don't care if it is HBuf or TBuf. All I need is:

*** buffer;

foo( TDes8 & a_buffer)

and then to call:

foo ( buffer ).

What is *** ???

[ltomuta]

In C++ that can be anything derived from TDes8 so basically any modifiable (if needed) or unmodifiable (if method only reads data from it) 8 bit descriptor. It pretty much depends on what are you doing with the data stored inside.

[nmnir]

Thanks!

I got it finally

Nahum