Re: Exception Logistics

From:
"Doug Harrison [MVP]" <dsh@mvps.org>
Newsgroups:
microsoft.public.vc.mfc
Date:
Fri, 02 Jul 2010 13:27:11 -0500
Message-ID:
<k8bs2651p5cpq1op5v4kmpbosrvfh9cm2v@4ax.com>
On Fri, 2 Jul 2010 14:04:23 -0400, "RB" <NoMail@NoSpam> wrote:

     if (pr->ExceptionCode == CPP_EXCEPTION)
...
     else if (pr->ExceptionCode != CPP_EXCEPTION)


I think I've seen something like that in the MFC source code. :)


It may very well be. However I found only references to it as func args
in searches my CRT SRC, in TRNSCTRL.H . Never found the definition
anywhere. The info on webpage "somewhere" that I found it, listed it as being
part of the CRT. In any case it returns real time values of the
typedef struct _EXCEPTION_RECORD {
   DWORD ExceptionCode;
   DWORD ExceptionFlags;
   struct _EXCEPTION_RECORD *ExceptionRecord;
   PVOID ExceptionAddress;
   DWORD NumberParameters;
   UINT_PTR ExceptionInformation[EXCEPTION_MAXIMUM_PARAMETERS];
   } EXCEPTION_RECORD;
That "is" defined in winnt.h .


What I was getting at is the logical redundancy in:

   if (x == y)
   else if (x != y)

It's similar to what MFC (still!) does in CWinThread::OnIdle:

    if (lCount <= 0)
    else if (lCount >= 0)

--
Doug Harrison
Visual C++ MVP

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