[Octave-bug-tracker] [bug #46852] error gripe appearing when it seemingly shouldn't during length()

[Dan Sebald]

Follow-up Comment #2, bug #46852 (project octave):

OK, the reason you can't find that error message is that I wasn't in fact
running the current code, but a slightly older version.  I've uninstalled and
rebuilt again to verify that the day-old repository is what is running.

The error still exists but the message now reflects the current format.  This
suggests this may not be related to the gripe-code changes, but some obscure
structure bug that hasn't arisen before.  The message is now:

error: length(117): out of bound 1

The example you gave produces:

octave:3> ls = 1;
octave:4> ls ('u')
error: ls(117): out of bound 1

So, the above two bugs are not of the same nature.  Where the second error
message makes sense, the first doesn't.  length(x) is the syntax causing the
error.  length(117) is valid syntax if that is arising somehow.

I think that something (probably in the structure code) is causing an invalid
error to be thrown and then the gripe code prints out a message accordingly,
but it is a nonsensical error message.

I've tried to replicate this in a more direct way, but can't.  I've extracted
the structure and worked on it directly and no error occurs.  Only in the
circumstance of a bigger program.  I'll keep trying things and see if I can
find a pattern.


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