[bug #68237] "load" emits long series of "classdef not found" warnings when loading struct array

foreverallama <[email protected]> Thu, 16 Apr 2026 10:35:49 -0400 (EDT)

Newsgroups	gmane.comp.gnu.octave.bugs
Message-ID	<[email protected]>

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Follow-up Comment #18, bug #68237 (group octave):


> I wonder if you are doing it from directory that has many subdirs (with many
> more subdirs) it searcher recursively for all those subdirs for the missing
> classdefs?
This was spot on. This line is causing an approx ~10x slowdown on my system
(Ubuntu VM) because its repeating the same lookup again and again.

cls = octave::lookup_class (classname, false, true);

I think a simple fix would be to cache classnames for failed lookups during
load. @kolmanthomas are we already handling this in the text format? 

> The warning ID isn't listed in the manual, that is, I use the GUI doc
> browser
Thanks, I'll look into adding into the manual.

> it's up to that library to handle Ctrl-C.
Thanks. I found a reference for `octave_quit()` which seems to handle
interrupts. I think calling this at the top of reading large struct/cell
arrays should be sufficient.


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