Check usage of lookup table blocks

Check ID: mathworks.hism.hisl_0033

Check for lookup table blocks that do not generate out-of-range checking code.

Description

This check verifies that the following blocks generate code to protect against inputs that fall outside the range of valid breakpoint values:

This check also verifies that Interpolation Using Prelookup blocks generate code to protect against inputs that fall outside the range of valid index values.

Available with Simulink^® Check™.

Results and Recommended Actions

Condition	Recommended Action
The lookup table block does not generate out-of-range checking code.	Change the setting on the block dialog box so that out-of-range checking code is generated. For the 1-D Lookup Table, 2-D Lookup Table, n-D Lookup Table, and Prelookup blocks, clear the check box for Remove protection against out-of-range input in generated code. For the Interpolation Using Prelookup block, clear the check box for Remove protection against out-of-range index in generated code.

Condition

Recommended Action

The lookup table block does not generate out-of-range checking code.

Change the setting on the block dialog box so that out-of-range checking code is generated.

For the 1-D Lookup Table, 2-D Lookup Table, n-D Lookup Table, and Prelookup blocks, clear the check box for Remove protection against out-of-range input in generated code.
For the Interpolation Using Prelookup block, clear the check box for Remove protection against out-of-range index in generated code.

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.

Action Results

Clicking Modify verifies that lookup table blocks are set to generate out-of-range checking code.