Negative

[Walter Bright]

"Andrew Fedoniouk" <news at terrainformatica.com> wrote in message 
news:du106f$ptt$1 at digitaldaemon.com...
> Well, I spent year programming on PocketPC in eVC where are no such
> things as exceptions. In principle. Not implemented in C++ compiler.
> Still alive :)

It's true that if code doesn't generate exceptions, then one doesn't need 
exception safety.

> But
> Transaction abc()
> {
>    try {
>      Foo f = dofoo();
>      Bar b = dobar();
>      Def d = dodef();
>      return Transaction(f, b, d);
>   } catch(object er) {
>        delete f; delete b; delete d;
>   }
> }
> is not worse to be honest.

It is worse because it won't even compile. f, b, and d are not in scope in 
the catch statement. Even if they were, there's still a serious bug - if 
dofoo() throws an exception, then the catch statement will attempt to delete 
b and d, which are not even initialized yet.