Re: Assertion in symbol table due to Revision 8881

[Nitzan Arazi]

This is similar to what I am getting with the simple example in

http://www-old.cae.wisc.edu/pipermail/bug-octave/2009-June/008875.html

Nitzan Arazi


Daniel J Sebald wrote:
> 
> John,
> 
> I've come across an assertion that I traced back to the first (second?)
> mod following version 3.1.53:
> 
> --- a/src/ChangeLog   Thu Feb 26 12:25:22 2009 -0500
>        2 +++ b/src/ChangeLog  Thu Feb 26 13:58:47 2009 -0500
>        3 @@ -1,5 +1,25 @@
>        4  2009-02-26  John W. Eaton  <address@hidden>
>        5  
>        6 +    * symtab.h
> (symbol_table::symbol_record::symbol_record_rep::forced):
>        7 +    New static constant.
>        8 +
> (symbol_table::symbol_record::symbol_record_rep::force_variable,
> ...
> 
> labelled as [Thu, 26 Feb 2009 13:58:47 -0500] rev 8881.  (Wish Hg-viewer
> simply listed the date rather than a vague "4 months ago"... BTW, without
> the ChangeLog file I likely would have given up trying to locate where the
> bug appeared.)
> 
> I'm afraid I can't be much help with a short example that causes the
> assertion.  The code segment is embedded in a bigger convoluted program
> and the script file is a recursive one.  Small examples I've tried don't
> cause the problem on its own.  The best way for me to describe the
> occurence is "An assignment made inside of an eval(), inside of a
> nested/recursive script routine."
> 
> The octave-core dump ends up being only 11 bytes long.
> 
> The actual note is
> 
> octave: symtab.h:1066 : static void symbol_table::force_variable(cost
> std::string&, int, size_t): Assertion
> `xcurrent_context == 0' failed.
> panic: Aborted -- stopping myself...
> attempting to save variables to 'octave-core'...
> save to 'octave-core' complete
> Aborted
> 
> Version 3.1.53 works fine.
> 
> Dan
> 
> 
> 

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