id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
1991	StateSelect Attribute with unfixed parameters wrong evaluated without warning	Jens Frenkel	Adrian Pop	"Consider the following model. The state select attribute is set via unfixed parameters. The frondend evaluates the unfixed parameters but report no warning about that. The result is totaly different to the exprected from the modelers view for y and z.

{{{
model StateSelectCheck
  parameter Boolean preferredStates=true;
  parameter Boolean preferredStatesUnfixed(fixed=false);
  parameter Boolean preferredStatesUnfixedStart(fixed=false,start=true);
  Real x(stateSelect = if preferredStates then StateSelect.prefer else StateSelect.avoid);
  Real y(stateSelect = if preferredStatesUnfixed then StateSelect.prefer else StateSelect.avoid);
  Real z(stateSelect = if preferredStatesUnfixedStart then StateSelect.prefer else StateSelect.avoid);
initial equation
  preferredStatesUnfixed = true;
  preferredStatesUnfixedStart = false;
equation
  der(z) = time;
  0 = x^2 + y^2 + z^2;
  y = x + z;
end StateSelectCheck;
}}}

Result after the FrontEnd:
{{{
class StateSelectCheck
  parameter Boolean preferredStates = true;
  parameter Boolean preferredStatesUnfixed(fixed = false);
  parameter Boolean preferredStatesUnfixedStart(start = true, fixed = false);
  Real x(StateSelect = StateSelect.prefer);
  Real y;
  Real z(StateSelect = StateSelect.prefer);
initial equation
  preferredStatesUnfixed = true;
  preferredStatesUnfixedStart = false;
equation
  der(z) = time;
  0.0 = x ^ 2.0 + y ^ 2.0 + z ^ 2.0;
  y = x + z;
end StateSelectCheck;
}}}"	defect	new	high	1.9.0	Frontend	trunk			Martin Sjölund Willi Braun Lennart Ochel