Re: How to catch an exception?

"Alexander Nickolov" <>
Mon, 2 Apr 2007 13:20:37 -0700
Well, the historic reason is VC 1.0 didn't support C++ exceptions
when MFC was designed and first published. C++ exceptions
appeared in a later C++ standard.

Alexander Nickolov
Microsoft MVP [VC], MCSD

"Igor Tandetnik" <> wrote in message

"Anders Eriksson" <> wrote in message

"Igor Tandetnik" <> wrote in message

MFC exceptions are thrown by pointer. Make it

try {...}
catch (COleException* ex) {

Somehow I have read something and drawn the conclusion that I should
us catch(CException &e)

That's indeed what you should do for sane exception systems (better still,
catch by reference to const). But MFC exceptions are not quite sane: for
certain technical and historical reasons, they are allocated on the heap
and thrown by pointer. Don't design your own exceptions this way, realize
that it's an unfortunate quirk of MFC.
With best wishes,
   Igor Tandetnik

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