Re: Being Confused by /EH Exception Handling Model

From:
"Ben Voigt [C++ MVP]" <rbv@nospam.nospam>
Newsgroups:
microsoft.public.vc.language
Date:
Mon, 8 Dec 2008 01:33:50 -0600
Message-ID:
<44BC1DD2-1304-4740-928C-24B23B3BFFC7@microsoft.com>
"Alan Carre" <alan@twilightgames.com> wrote in message
news:ev2bjaPWJHA.1244@TK2MSFTNGP03.phx.gbl...

<wuguangwen734@gmail.com> wrote in message
news:d8ee3f1a-ba67-4444-bfb8-7bdb41bb1405@k24g2000pri.googlegroups.com...

<quote>
"Structured exception handling works with C and C++ source files.
However, it is not specifically designed for C++....You can ensure
that your code is more portable by using C++ exception handling. The C+
+ exception handling mechanism is more flexible, in that it can handle
exceptions of any type."
</quote>

Anyway, my initial purpose for discussion was to differentiate between
the /EHsc option and the /EHs.


Check. I guess the 's' stands for "structured" and 'c' for "C++"... ? I
only


s is for synchronous, there's also /EHa which is asynchronous and causes C++
exception handling to use SEH underneath.

read the top post and a couple replies and assumed you were of the opinion
that either there was a bug in the compiler or an error in the
documentation and looking for something more reliable.

[Opinion - READ_DISCARDABLE]

Not sure why, but I've never been much of a fan of C++ exception handling
as a routine mechanism for handling program flow... things like CFile and
so on throwing errors rather than returning them. I guess I can see the
benefit if you're like 20 funtions nested and run into a brick wall and
you have to get out somehow. Ya, then it would be the easiest way to abort
whatever you're doing but still... don't like non-linear flow. Maybe it's
just a quirk of mine... but when I press F10 (step-over for me) I expect
to wind up on the next line in the source file, not some general error
handler 200 miles away that has nothing to do with the current context.
But that's just my humble opinion.

[/Opinion]

- Alan Carre

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