xml-dev - Re: SAX2: Exceptions/C++

[David Brownell <david-b@pacbell.net>]

To summarize some off-line discusions, it's not "necessary" to use a
new exception model due to any MT isues in C++ program; state kept on
the stack, easily accessible to applications, suffices for reasonably
written chunks of code.  As in Java, so in C++.  (Although historically
it goes the other way around ... C++/MT/Exceptions illuminated the
design of Java exceptions, along with experience in other languages
that offered OO, MT and exceptions well before C++ got its clue!)

- Dave


"Mark D. Anderson" wrote:
> 
> > I'll confess I didn't quite notice any MT issues in that post, but as you
> > stated it was really a "what Parser/InputSource is in use" issue that
> > isn't MT-specific at all.
> >
> > I can't see a way confusion could arise there unless one parser callback
> > needs to invoke some other parser, and is sloppy about letting exceptions
> > from that invocation appear as if they were exceptions from the current
> > invocation.  There are always ways to create bugs if code isn't careful.
> 
> if i have a single catch which is "above" multiple simultaneous parsing
> activities, then how can i determine from the exception object alone
> which parser is involved? or is the answer to not do that?
> 
> -mda

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