function with multiple outputs is treated strange

[Willi Braun]

In the following model the function f1 is simplified wrong to 1.
For some reasons the function f is constant, when f1 is simplified.

function f
  input Real x;
  output Real y;
  output Real y1;
algorithm
  y := exp(x);
end f;

function f1
  input Real x;
  output Real y;
algorithm
  y := 1 / f(x); // don't work
  //y := (-f(x)) / (-2); // works
  //y := f(x) / 2; // don't work
  //y := f(x) + f(x); // don't work !!!
end f1;

model A
  Real y;
equation
  y = f1(time);
end A;

[Willi Braun]

Okay, I found a missing case for tuples in ExpressionSimplify(r16348). So that the first 3 cases are fixed.

But following is still open:

function f
  input Real x;
  output Real y;
  output Real y1;
algorithm
  y := exp(x);
end f;

function f1
  input Real x;
  output Real y;
algorithm
  y := f(x) + f(x); // fails !!!
  y := (-f(x)) + f(x); // works
  y := f(x) + (-f(x)); // works
  y := (-f(x)) + (-f(x)); //works
end f1;

model A
  Real y;
equation
  y = f1(time);
end A;

I guess we need to expand tuples somewhere.

[Martin Sjölund]

I think these probably just lack the DAE.TSUB on the right side. Factors, etc, should not handle tuples!

[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]

Works as expected in v1.13.0-dev-155-g68350e9