Re: [Rosegarden-devel] Using C++ exceptions

[Guillaume L. <gla...@te...>]

On Thursday 14 July 2005 10:27, Chris Cannam wrote:
>
> We used to have a rule not to throw across Qt library boundaries because Qt
> might be compiled without exception support enabled.  It's maybe still
> worth following that one, although I think the justification is history.

The justification was that the exception support of g++ was adding a fairly 
large overhead, and compiling Qt without it would save quite a few megs of 
RAM. Apparently this is no longer the case, however I'm not sure how an 
exception would be handled when thrown across the signal/slot mechanism for 
instance (emitting a signal which calls a slot which throws). This would 
certainly be a major headache, so it's probably a good idea to avoid throwing 
from a slot.

-- 
Guillaume.
http://www.telegraph-road.org