exceptions vs error codes

[Max Samukha via Digitalmars-d]

On Wednesday, 13 July 2016 at 09:04:20 UTC, ketmar wrote:
> On Wednesday, 13 July 2016 at 07:14:04 UTC, Max Samukha wrote:
>> Undefined does not imply corrupt.
>
> undefined means "undefined". there is nothing more to save, 
> nothing more to do, as you can't rely on a single bit. this 
> is... definition of undefined.
>
> relying on defined state with undefined behavior is not only 
> dangerous, it is plainly invalid.

Not true. Undefined implies there *may* be something to save. 
That is why programs like Steinberg Cubase do not simply bail out 
on failure, but give users a chance to save a copy of their work. 
In my experience with Cubase, state needed for recovery survived 
the failure more often than not.