🚀 go-pugleaf

In article <1991May23.131907.11319@unlinfo.unl.edu> khawand@hoss.unl.edu (Nancy Khawand) writes:

   I am using MSC to write a macro interface to Harvard Graphics - no
   big deal.  The problem however is that when I execute my code I get
   different results from the same data each time it is run.  Sometimes
   the program works as I expect and sometimes it crashes the machine.
   Removing printf debug statments also seems to affect the outcome.

   I talked with MS and they said to recompile the program disabling
   all optimizations.  When I do that, the programs doesn't work at all.

   Does anyone have any suggestions as to what to look for - I'm one
   lost sole on this one.


Ahh, the joys of C.  Are you using 6.0?  If so, are you using function
prototypes?  It's worth the time to put them in.  You may have botched
calling a function.  The other worth guess is that you've botched a
pointer and something is getting overwritten.  When adding/removing
statements which shouldn't affect the code (such as printf) have
effects then that may be the problem.  If it fits, can you try the
small model?  That might at least stop over-writing the code portion
of your program.  You can also try the (medium,compact) model, which
ever gives you 64k data, but 1 meg code.

Good luck.

bruce.

p.s. Sometimes, Fred Brook's advice is a good idea.  You learned quite
a bit from the first try.  Start over fresh.  It'll probably work
better.
--
Bruce O'Neel              oneel@heasfs.gsfc.nasa.gov
NASA/GSFC/STX/Code 664