[Octave-bug-tracker] [bug #58445] significant slow down in stable version for cellfun invocations which use function handles

[Rik]

Follow-up Comment #7, bug #58445 (project octave):

@Philip: Wow, you found that old thread.  I only had a vague memory that this
had been discussed before.

@jwe: cacheing seems like a good solution.  Also, it is one of my pet peeves
that arrayfun() was programmed to parse its arguments and then hand off
execution to cellfun().  This results in a big slowdown because, for
arrayfun(), the function and the datatype are known upfront.  There is only
one signature that is ever needed, but by delegating to cellfun the code has
to assume that the data type might change for every value through the loop.

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