Re: )LOAD dumped WS had a name clash - intermittend

[Dr . Jürgen Sauermann]

Hi Peter,

it very much looks like the VALENCE ERROR is caused by the minus
sign in 1E-13. The question is where the minus comes from. There
are two possibilities:

1. The most likely case is that the user has written 1E-13 in some
   APL script (but meant to write 1E¯13). In this case GNU APL seems to
  behave correctly (1E-13 is parsed 1 E - 13 and then E must be dyadic).

2. The minus comes from am earlier )DUMP which wrote 1E-13 instead of
   1E¯13. In that case the information below is not sufficient as to 
how the
   fault was produced.

Please check your workspaces with a text editor (both .xml and .apl files
are human readable). GNU APL tends to use uppercase E and ¯ (like 1E¯13)
in .apl files and lowercase e and ASCII - (like 1e-13) in .xml files. 
Therefore
the combination of uppercase E and ASCII - is not supposed to occur in
either file format.

Best Regards,
Jürgen


On 9/29/23 14:28, Hans-Peter Sorge wrote:
> Hi,
>
> I have a function E (as simple as in test below)   in my workspace (WS 
> size 2.9MB).
>
> )DUMP and
> )loading it produces an error:
>
>      )LOAD ........
> DUMPED 2023-09-28  19:44:54 (GMT+2)
> VALENCE ERROR
>       ⎕CT←1 E-13
>           ^  ^
>
>
> Just
> )ERASE E
> ∇E .... ∇  ⍝ recreate ist
> )DUMP
> )LOAD ...
>
> fixed if
>
> Best Regards
> Hans-Peter