Conditions

• The expression must be a Boolean expression of some kind. The condition must evaluate to either true (1) or false(0).
• The expression can consist of:
  • Boolean operators, which make comparisons between data and numeric values
  • Any function that returns a Boolean value
  • The In(state_name)condition function that is evaluated as true when the state specified as the argument is active. The full state name, including any ancestor states, must be specified to avoid ambiguity.
• The condition expression should not call a function that causes the Stateflow diagram to change state or modify any variables.
• Boolean expressions can be grouped using & for expressions with AND relationships and | for expressions with OR relationships.
• Assignment statements are not valid condition expressions.
• Unary increment and decrement actions are not valid condition expressions.