[Octave-bug-tracker] [bug #64318] inputParser fails on parse in mixed addOptional/addParameter setting

[A.R. Burgers]

URL:
  <https://savannah.gnu.org/bugs/?64318>

                 Summary: inputParser fails on parse in mixed
addOptional/addParameter setting
                   Group: GNU Octave
               Submitter: arb
               Submitted: Mon 19 Jun 2023 08:35:53 AM UTC
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Regression
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
                 Release: dev
         Discussion Lock: Any
        Operating System: Any
           Fixed Release: None
         Planned Release: None


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Follow-up Comments:


-------------------------------------------------------
Date: Mon 19 Jun 2023 08:35:53 AM UTC By: A.R. Burgers <arb>
The following inputParser example produces an error with dev:


p = inputParser;
p.addOptional('p_opt', []);
p.addParameter('p1', 'p1_default');
p.addParameter('p2', 'p2_default');

% 1st use: supply value for Optional argument
p_opt_val = rand(1,3);
p.parse(p_opt_val);
p_opt_val = p.Results.p_opt
p2_val = p.Results.p2

% 2nd use: no value supplied for Optional argument
p.parse()
p_opt_val = p.Results.p_opt
p2_val = p.Results.p2


octave-8.x (and matlab) output:


p_opt_val =   0.6983   0.9372   0.6371
p2_val = p2_default
p_opt_val = [](0x0)
p2_val = p2_default


octave-9.x error message, when optional argument not specified:


p_opt_val =   0.4458   0.8761   0.1959
p2_val = p2_default
error: horizontal dimensions mismatch (1x1 vs 2x1)
error: called from
    add_missing at line 678 column 28
    parse at line 527 column 7
    tst at line 11 column 1









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