Check Stateflow charts for unary operators

mathworks.hism.hisf_0211

Dependencies: Simulink^® Check™ and Stateflow^®

Usage: High-Integrity System Modeling

Guideline: Check Stateflow charts for unary operators

Description

Use this check to identify unary minus operators on unsigned data types in Stateflow charts.

Check Parameters

Use the Model Advisor Configuration Editor to define the scope of the analysis by specifying the input parameters.

Parameter	Description
Follow links	Specify whether to include content of library-linked blocks in the analysis. on (default) | off
Look under masks	Specify whether to include masked model elements in the analysis. all (default) | none | graphical | functional all — Check analysis includes all masked model elements. none — Check analysis excludes masked model elements. graphical — Check analysis includes only the graphical masked model elements. functional — Check analysis includes only the functional masked model elements.

Recommended Actions and Results

Review the violations that are flagged by the check and the recommended action for fixing the issue. After applying the changes, save the model and rerun the check analysis.

Modeling Condition	Recommended Action
The Stateflow chart contains a unary minus operator on unsigned data types.	Explicitly modify the unary operator on unsigned data types. For more information, see Unary Operations and Actions (Stateflow).

Capabilities and Limitations

• Does not run on library models

• Does not flag expressions with bitwise and arithmetic operators except for shift and divide operations

• Analyzes only active variant choices

• Performs model compilation

Version History

Introduced in R2020a