This rule enables resolution of enumerated data types for Simulink models.

The name of an enumerated data type cannot match the name of another data type or a variable in the MATLAB base workspace. Otherwise, a name conflict occurs.

Machine-parented data is not supported for enumerated types.

This rule applies to graphical functions, truth table functions, and Simulink functions.

Since enumerated values are constants by nature, assigning these values to constant data is redundant and unnecessary. If you try to assign enumerated values to constant data, an error message appears.

If you use nonprefixed identifiers to refer to enumerated values in a chart, ensure unique name resolution in each case. For requirements, see Nonprefixed Notation for Enumerated Values.

Examples of valid assignments to enumerated data include:

• y = BasicColors(3)

• y = BasicColors.Red

If you choose to set an initial value for enumerated data, you must use a prefixed identifier in the Initial value field of the Data properties dialog box. For example, BasicColors.Red is a valid identifier, but not Red. This rule applies because the initial value must evaluate to a valid MATLAB expression.

For information about prefixed notation, see Prefixed Notation for Enumerated Values.

Note   This rule also applies if you use the Model Explorer to define enumerated data.

How the Minimum and Maximum fields appear in the Data properties dialog box depends on which option you use to define enumerated data.

Leave the Minimum and Maximum fields empty for enumerated data. Any values you enter in these fields are ignored.

This operator does not support enumerated data. For more information, see ml Namespace Operator.