no support for discrete equation systems

[Lennart Ochel]

Some discrete variables may be involved in equation systems. This is currently not supported.

model foo
  Real a;
initial equation 
  pre(a)^2 + a^2 = 9;
equation 
  when {sample(0.1, 0.1)} then
    a = time;
  end when;
end foo;

Error log:

Translation | Interner Fehler Transformation Module sort components failed!
Translation | Interner Fehler sorting equations(strongComponents failed)
Translation | Interner Fehler ./Compiler/BackEnd/BackendDAETransform.mo: function analyseStrongComponentBlock failed
Translation | Interner Fehler Sorry - Support for Discrete Equation Systems is not yet implemented
              $PRE.a
              a
              $PRE.a ^ 2.0 + a ^ 2.0 = 9.0
              a = $PRE.a

[Martin Sjölund]

Postponed until 1.9.1

[Martin Sjölund]

This ticket was not closed for 1.9.1, which has now been released. It was batch modified for milestone 1.9.2 (but maybe an empty milestone was more appropriate; feel free to change it).

[Martin Sjölund]

Milestone changed to 1.9.3 since 1.9.2 was released.

[Martin Sjölund]

Moved to new milestone 1.9.4

[Martin Sjölund]

Milestone pushed to 1.9.5

[Martin Sjölund]

Milestone renamed

[Martin Sjölund]

Ticket retargeted after milestone closed

[Martin Sjölund]

Milestone moved to 1.12.0 due to 1.11.0 already being released.

[Francesco Casella]

The milestone of this ticket has been reassigned to "Future".

If you think the issue is still valid and relevant for you, please select milestone 1.13.0 for back-end, code generation and run-time issues, or 2.0.0 for front-end issues.

If you are aware that the problem is no longer present, please select the milestone corresponding to the version of OMC you used to check that, and set the status to "worksforme".

In both cases, a short informative comment would be welcome.