scope(failure) considered FREAKING AWESOME

[Justin Johansson]

Walter Bright Wrote:

> Justin Johansson wrote:
> > C++ constructors/destructors and stack-unwinding mechanism
> > are considered FREAKING AWESOME.
> 
> Ok, good. Now write (using C++ RAII) the following where both 
> transactions must succeed or neither:
> 
> void foo()
> {
>      A();
>      scope (failure) undo_A();
>      B();
>      scope (failure) undo_B();
>      writeln("A and B succeeded!");
> }

Thanks Walter; point taken.
Glad we had this discussion :-)

-- Justin