On Monday, 12 January 2015 at 17:57:10 UTC, H. S. Teoh via
Digitalmars-d wrote:
Yeah, exceptions are supposed to be ... well, *exceptions*,
rather than
the norm. :-) If you're using exceptions to do flow control,
you're
doing something wrong.
I'm sorry, but this is just a crappy excuse invented to defend
C++ EH. It has no merits, except being an excuse for writing
exceptionally convoluted code to save performance because real
exceptions are slow.
(Everything that involves a state change is essentially flow
control if we are going down to basics.)
There are plenty of situations where exceptions used for retries
is the most sensible solution. Heck, that's even how x86 floating
point exceptions work.
There are plenty of situations where returning state with
exceptions makes the most sense, e.g. a web service request
handler.
