[Octave-bug-tracker] [bug #57982] [octave forge] (optim) error message in nonlin_min for a simple problem

[Carlo de Falco]

Update of bug #57982 (project octave):

                 Release:                   5.2.0 => 6.0.90                 

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Follow-up Comment #1:

The same error occurs on the 6.0 branch,
invoking any test in any nonlin* function from the
'optim' package, e.g. :


>> test nonlin_min 
***** test
 ## independents
 indep = 1:5;
 ## objective function:
 f = @ (p) sumsq (p(1) * exp (p(2) * indep) - [1, 2, 4, 7, 14]);
 ## initial values:
 init = [.25; .25];
 ## linear constraints, A.' * parametervector + B >= 0
 A = [1; -1]; B = 0; # p(1) >= p(2);
 settings = optimset ("inequc", {A, B});

 assert (nonlin_min (f, init, settings), [.6203; .6203], .0001);
!!!!! test failed
'fname' undefined near line 121, column 121
>> 


The same behaviour occurs also with optim downloaded from
the source repository

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