Stateflow

Arrays in Action Language

This section tells you how to use Stateflow data arrays in action language. See the following topics:

• Array Notation -- Gives examples of array notation in action language.
• Arrays and Custom Code -- Shows you how to access arrays provided by custom code that you build into a Stateflow target.

Array Notation

Use C style syntax in the action language to access array elements.

• local_array[1][8][0] = 10;
  
  local_array[i][j][k] = 77;
  
  var = local_array[i][j][k];
  

As an exception to this style, scalar expansion is available within the action language. This statement assigns a value of 10 to all the elements of the array local_array.

• local_array = 10;
  

Scalar expansion is available for performing general operations. This statement is valid if the arrays array_1, array_2, and array_3 have the same value for the Sizes property.

• array_1 = (3*array_2) + array_3;
  

Note    Use the same notation for accessing arrays in Stateflow, from Simulink, and from custom code.

Arrays and Custom Code

Stateflow action language provides the same syntax for Stateflow arrays and custom code arrays.

See also Integrating Custom Code with Stateflow Diagrams.

Note    Any array variable that is referred to in a Stateflow chart but is not defined in the data dictionary is identified as a custom code variable.

Data and Event Arguments

Event Broadcasting