Re: [Axiom-developer] Re: debugging

[Waldek Hebisch]

> Greetings!  Again, I get
> 
> --->-->PlaneAlgebraicCurvePlot(constructor): Unexpected HT command: \indented
> "\\indented{1}{Plot a NON-SINGULAR plane algebraic curve 
> \\spad{p}(\\spad{x},{}\\spad{y}) = 0.} Author: Clifton \\spad{J}. Williamson 
> Date Created: Fall 1988 Date Last Updated: 27 April 1990 Keywords: algebraic 
> curve,{} non-singular,{} plot Examples: References:"
> 
> Error: 
> Signalled by COMPILER::COMPILE-FILE1.
> INTERNAL-SIMPLE-READER-ERROR: Stream error on stream #<input stream 
> "ACPLOT.NRLIB/ACPLOT.lsp">: The default dispatch macro signalled an error.
> 
> Broken at COMPILER::COMPILE-FILE1.  Type :H for Help.
>  1 (Continue) Retry compiling file "ACPLOT.NRLIB/ACPLOT.lsp".
>  2 Retry compiling file "ACPLOT.NRLIB/ACPLOT.lsp".
>  3 Return to top level.
> BOOT>>
> cat ACPLOT.NRLIB/ACPLOT.lsp
> 
> (/VERSIONCHECK 2) 
> 
> (DEFUN |ACPLOT;NFtoSF| (|x| $)
>   (PROG ()
>     (RETURN
>       (+ '#1=#((|DoubleFloat|)
>                (#<compiled-function |lookupComplete|> #1#
>                 #(~= 231 |zero?| 237 |wholePart| 242 |unitNormal| 247
> ...
> 
> Is this the same issue as you are reporting (or related)?
> 

At safety 3 this function compiles just fine.  At safty 1 I get an
error earlier, in DFLOAT.lsp I see:

(DEFUN |DFLOAT;base;Pi;7| ($)
  (PROG () (RETURN (FLOAT-RADIX '#<OBJNULL>))))


Now, #<OBJNULL> is IMHO very strong indication of memory corruption
(I see no legal way to produce it).  OTOH the vector (value of '#1')
you see is clearly wrong in this place, but it looks like normal
Axiom domain vector.  So ATM it not clear if both failures are related.
-- 
                              Waldek Hebisch
address@hidden