expt - Fatal Error

I have code that has worked for 6 years.
After upgrading to AutoCAD 2004 I often, not allways, get a fatal error.
The error occurs on the function (expt d1 2)

during debugging I have checked the following
d1 = 400.0

(type d1) = REAL

(expt d1 2) = ; error: Exception occurred: 0xC0000093

Any help would be much appreciated

Martin Wright

 

Are you sure that's the line? I tried it and it
doesn't happen here with those parameters.



AcadX for AutoCAD 2004 Beta 1
http://mysite.verizon.net/~vze2vjds/acadx/AcadX16.zip

 

Definetly
It is not the parameters it is something to do with the way the value is
calculated which is
(distance p1 p2) where p1 and p2 are point lists from entities.
I have written my own function to replace expt and fixed the problem.
It did not allways give the error but was consitent when processing data
from a particular entity.
martin

 

This error cannot be reproduced in a demonstration.
I thought that others may have come across the problem and found a solution
Martin

 

Martin,
Is it possible that d1 (may be negative ?)
Bob

 

D1 is not negative. I have confirmed this by printing to tthe screen with
lofgileon.
Also D1 is obtained by the distance function, between 2 points and as far as
I know this is allways positive
Martin Wright

 

We've noticed the same thing on multiple machines using oem2002 and functions that haven't changed for ages.

Seeing this post, I changed (expt A 2) to (* A A) which seems to solve the problem.

We're using W2K and XP, both with various service packs.

The only thing that I know that we did to the machines that experienced the problem was to install the Office 2003 upgrade (pushed out by central IT).