Check for inconsistent vector indexing methods

Check ID: mathworks.hism.hisl_0021

Identify blocks with inconsistent indexing method.

Description

Using inconsistent block indexing methods can result in modeling errors. You should use a consistent vector indexing method for all blocks. The indexing methods are zero-based, one-based or user-specified.

Blocks that support configurable indexing:

• Assignment

• For Iterator

• Index Vector

• Multiport Switch

• Selector

Blocks that support only one-based indexing:

• Fcn (deprecated)

• MATLAB Function

• MATLAB System

• State Transition Table (Stateflow) with MATLAB action language

• Test Sequence (Simulink Test)

• Stateflow chart with MATLAB action language

• Truth Table function with MATLAB action language

Blocks that supports only zero-based indexing:

• Stateflow chart with C action language

• Truth Table function with C action language

• State Transition Table (Stateflow) with C action language

Available with Simulink^® Check™.

Results and Recommended Actions

Condition	Recommended Action
The model or subsystem contains blocks with inconsistent indexing methods. The indexing methods are zero-based, one-based or user-specified.	Modify the model to use a single consistent indexing method.

Capabilities and Limitations

• Runs on library models.

• Analyzes content in masked subsystems. By default, the input parameter Look under masks is set to all.

• Analyzes content of library-linked blocks. By default, the input parameter Follow links is set to on.

• Allows exclusions of blocks and charts.

See Also

• hisl_0021: Consistent vector indexing method