[Octave-bug-tracker] [bug #52568] str2func can't create a "lazy" handle to function which does not exist when str2func is executed

[avlas]

Follow-up Comment #10, bug #52568 (project octave):

Yes. Your intuition is correct. Result in Matlab 2017b:

1. cd /dir/without/foo.m (actually foo.m does not yet exist)

2. fh = @foo  %% no foo.m in current dir or loadpath

fh =

  function_handle with value:

    @foo

3. fh ()      %% presumably an error

Undefined function or variable 'foo'.

4. cd /dir/with/foo.m (I create foo.m in current folder)

5. fh ()      %% calls function defined in /dir/with/foo.m?

this is function fh (just a dummy function that displays this msg)

6. cd /dir/without/foo.m

7. fh ()      %% error or calls previous foo.m?

'foo' is not found in the current folder or on the MATLAB path, but exists
in:
    foopath

Change the MATLAB current folder or add its folder to the MATLAB path.

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