an interesting function definition

[xyzt]

Hello
I've seen a function definition in a program. I've not seen something like that before.I tried it and it really compiles with no error. Here's the code:

class Y
{
        public:
                Y(){}
                virtual ~Y(){}
                virtual void f() //this is valid!!!
                try{
                        std::cout<<__func__<<"\n";
                }
                catch(...)
                {
                }
};

the function definition and try block starts at the same point.is this something special? why do you think the programmer did such a thing?

thanks.

[m4ster r0shi]

xyzt wrote:

is this something special?

Yes. See here -> http://www.drdobbs.com/184401297

[xyzt]

Thanks.

[moorecm]

That's pretty cool. I had no idea...

__func__ is still nonstandard, though. ;)

[Lv0f92yv]

Quick question - in one of the examples in the Dr.Dobbs article, he does this:

class C
{
   int &r;
   C(int &n)
   {
       r = n; // won't work!
   }
};

I can't compile this, I get an error:

uninitialized reference member `C::r'

pointing to the int &r;...


Even after removing the line he says won't work, I still get a compiler error. To me, it doesn't make sense to do int &r;... Not sure what I'm looking at there (declaring an address of something that is an integer?).

Thanks to any who can give a clarification.

[moorecm]

The comment "won't work" should be on line 3... References must be initialized and are not assignable.

[Albatross]

There's no default constructor and those references need initialization and cannot be assigned, ITECIMBS.

EDIT: Dammit.

-Albatross

[Lv0f92yv]

Alright. Making sure I'm not delusional.