🚀 go-pugleaf

This is a specific question pertaining to a problem I am having with IBM 
C Set/2 on OS/2 2.0.  I am trying to speak with IBM technical support about it,
but they are busy people, and maybe someone on this group has run into a 
similar problem.

Now I'm not 100% sure that the problem here doesn't lie in my code, but I can 
find nothing myself to explain it.  Here goes...

I've inherited some code which does a bunch of fopen's and fclose's.  Normally,
these calls work fine.  There is one point in the code where it always hits an
Access Violation.  Always when trying to open the same exact file.  So, I fired
up IPMD and stepped through it and found the problem spot.  Two different files
are being open one after the other, the first succeeds and the second fails.  
This failure is not the cause of the access violations; the FILE structure 
which the pointer returned by fopen points to is invalid for the second file.
Specifically, the count and tempStore fields, which are zero before the fopen
call, and remain zero in the successful fopen call, are set to seemingly
pointless values.  The actual access violation occurs when I execute a loop 
that basically does a getc until an EOF.  Each getc call returns 0 (zero) and 
decreases the FILE structure's count field by 1.  Assumably, the Access 
Violation hits when the count gets to zero.  The unusual thing is the seemingly
random values for count and tempStore are always the same.  

Does anyone out there have any idea what may cause this?  When I tried changing
the order I fopen'ed the files, I found that the second fopen was the one that
failed, regardless of the file I attempt to open.  I don't seem to be hitting
a limit on file handles, as adding an extra 6 fopen's which I never fclose to 
the beginning of the program doesn't change how or where the corruption occurs.

If possible, please respond by email, as I don't follow this group.

Thanks immensely in advance!!

Kevin

---------------------------------------------------------
Kevin Schraith, Desktop Products       Oracle Corporation
kevins@netcom.com                          (415) 506-3268