Added dependency on bug #52582 of which this bug report is essentially a duplicate.  However, no problem to solve it here and then close both of them.

Attached is code from previous bug report.

# Constant property which is dervied from an expression, rather than a
# fixed value, doesn't parse and emits error.
classdef cdef_const_crash
  properties( Constant = true )
    FOO = 2;
    BAR = 4;
    FOOBAR = cdef_const_crash.FOO * cdef_const_crash.BAR;
  end
end

Run

c = cdef_const_crash
error: no such file, '/home/rik/wip/Projects_Mine/octave-dev/cdef_const_crash.m'
error: called from
    <unknown>

(file #55616)

using matlab 2023b, the original class with MinBug.A works. :

>> obj = MinBug()

obj =

  MinBug with properties:

    A: 1
    B: 2

if i change the

 B = MinBug.A * 2

line to

 B = A * 2

i get an error:

>> obj = MinBug()
Invalid default value for property 'B' in class 'MinBug':
Unrecognized function or variable 'A'.

Full discussion see here: https://octave.discourse.group/t/how-to-reference-a-const-property-within-an-octave-class/5214

I’m experiencing a problem when I want to reference a constant property member of a class from another property of the very same class. The minimal Octave code showing this problem is this:

classdef MinBug
  properties (Constant = true)
    A = 1
    B = MinBug.A * 2
  end
end

When trying to instantiate a new object via obj = MinBug() this error occurs:

error: no such file, 'PATH_TO_MINBUG/MinBug.m'
error: called from
    <unknown>