Hi,

I found the following bug by testing POV-Ray's behavior on very large or
very small values. If a value has more than 125 characters you'll get an
error message "String to long". That is OK. But in some versions (see
below) 
POV-Ray crashes (see also below) if you try to parse a value with a few
characters less than 126. For Example:

#declare a = 
12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345

It also happens when you put this into an #if (0=1) directive.
I found the problem in the following versions marked with yes and didn't
found it in the others: 

  version                              system     found
  V 3.1a.watcom.win32                  (Win98)    Yes
  V 3.1g.watcom.win32                  (Win98)    Yes
  V 3.1g.msdos.wat-cwa                 (Win98)    Yes
  V 3.1g.msdos.wat-cwa                 (DOS)      Yes
  V 3.00.msdos.wat-cwa                 (Win98)    Yes
  V 3.1g.linux.ggc                     (SuSE 6.2) No
  V 3.1g.msvc.win32                    (WIN??)    No
  V 3.1e.msvc.win32                    (Win98)    No
  V unofficial.MegaPOV.0.4.msvc.win32  (Win??)    No  
  
I found it already in an 3.0 Windows version but I don't remember which
one.
Can you try if you can duplicate the crash with your version. I suppose
it happens only with the wat compiles.

-- 

  >>> Manuel Moser  -  mos### [at] gmxde  <<<

Check AniTMT, a free software to create photorealistic animations:
       German: http://www.anitmt.de/  English: http://www.anitmt.org/



--------------------------------------------------------------------
Windows Crash (3.1g.watcom.win32):
The following message is displayed. And after confirming this POV-Ray is
closed.

  Pvengine


  [...]


  in Modul KERNEL32.DLL bei 015f:bff9d709.
  Register:
  EAX=c00300f0 CS=015f EIP=bff9d709 EFLGS=00010212
  EBX=0158ffbc SS=0167 ESP=0150ff7c EBP=01510218
  ECX=00000000 DS=0167 ESI=00000000 FS=50ef
  EDX=bff76859 ES=0167 EDI=bff79050 GS=0000
  Bytes bei CS:EIP:
  53 8b 15 dc 9c fc bf 56 89 4d e4 57 89 4d dc 89 
  Stapelwerte:

Free translation:

  This application is closed due to an illegal action.
  [...]
  PVENGINE caused an error by an illegal page in module KERNEL32.DLL at
[...]

---------------------------------------------------------------------
DOS crash (3.1g.msdos.wat-cwa):
POV-Ray displays this and terminates back to DOS.

  Exception: 0E, Error code: 0004

  EAX=32313039 EBX=83BDF641 ECX=FFFFFFFF EDX=83BDF5A8 ESI=83BDF668
  EDI=383736B2 EBP=00000001 ESP=83BDF5C4 EIP=83B8FCEF EFL=00010246

  CS=018F-7C541000 DS=0197-7C541000 ES=0197-7C541000
  FS=0000-xxxxxxxx GS=019F-xxxxxxxx SS=0197-7C541000

  CR0=00000000 CR2=00000000 CR3=00000000 TR=0000
 
  Info flags=00008018

  Writing CW.ERR file....

  CauseWay error 09 : Unrecoverable exception. Program terminated.

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