I saw an intersting post today about what is the quickest way to serialize a structure.

To do this the proper way there are three alternatives:

Write out the structure member by member using the RWriteStream classes specialized for files - RFileWriteStream
Read them back with the relevant RReadStream classes - RFileReadStream

Write InternalizeL and ExternalizeL functions to serialize the data.

Thirdly there is actually however a much simpler solution which generates much less problems, using the TPckgC/TPckg classes.

These class wrap a struct into a TPtr8 which make make it much easier to read and write

Structure:
struct TTestStruct
    {
    TInt         iInt;
    TBuf<32>    iString;
    };

To write:
const TPckgC<TTestStruct> pkgOut(tmp);
User::LeaveIfError(file.Write(pkgOut));

To read:

TTestStruct nw;
TPckg<TTestStruct> pkgIn(nw);
User::LeaveIfError(file.Read(0, pkgIn));

OR

TPckgBuf<TTestStruct> pkgIn;
User::LeaveIfError(file.Read(0, pkgIn));
.... do something with pkgIn().iString etc.

I was going to point you folks to the descriptors blog on blogspot but strangly enough I could'nt find anything there about it.

Maybe Jo will add a section for these useful classes (TPckg, TPckgC and TPckgBuf)?

I see F-Secure are now apparently flagging two Symbian signed applications as Spyware in their mobile security application.

I follow their blog quite often in my reader and this came up today:
http://www.f-secure.com/weblog/archives/archive-052007.html#00001190

They do not however publish the names of the products concerned.

This does rather interestingly lead to the question of where does Symbian Signed draw the line and just how much trust do we have in it to promote S60 as a safe platform for consumers?

I for one find this very dissapointing as the amount of money we (the company I work for, not a phone manufacturer) are spending on Symbian signed; and the program as a whole to build trust for consumers can so easily be undermined.

I hope the author or Nokia will go into more details about why these applications are flagged....

Hopefully this is just a misunderstanding on the part of F-Secure...

Still it looks like you will need to get AV software for your phone just like Windows