empty array

[Lennart Ochel]

The following model works fine:

model emptyArray1
  parameter Integer N = 0;
  Real r1[N];
  Real r2[N];
equation 
  r1 = fill(1.0, N);
equation
  r2 = r1;
end emptyArray1;

The model fails if the second equation get replaced with an algorithm:

model emptyArray2
  parameter Integer N = 0;
  Real r1[N];
  Real r2[N];
equation 
  r1 = fill(1.0, N);
algorithm 
  r2 := r1;
end emptyArray2;

InstantiateModel produces the following code for model emptyArray2:

class emptyArray2
  parameter Integer N = 0;
algorithm
  r2 := {};
end emptyArray2;

The problem is that there occurs a variable without definition (r2).

[Lennart Ochel]

This blocks the Petri net library.

[Adrian Pop]

Yeah, for an equation we do remove it if it involves a zero array.
It seems we do not do the same for algorithms.
I'll have a look.

[Adrian Pop]

Fixed in r16883.