Unused data, events, messages, and functions

Diagnostic action to take when unused data, events, messages, and functions in a chart are detected

Model Configuration Pane: Diagnostics

Description

The Unused data, events, messages, and functions parameter specifies the diagnostic action to take when Stateflow^® detects unused data, events, messages, or functions in a chart. Removing unused data, events, messages, and functions can minimize the size of your model.

This diagnostic does not detect input events or MATLAB^® function input and output data. Additionally, this diagnostic does not detect unused data for Stateflow charts that include Simulink^® functions, Simulink based states, or atomic subcharts.

Settings

warning (default) | none | error

none: No warning or error appears.
warning: A warning appears with a link to delete the unused data, event, or message in your chart..
error: An error appears and stops the simulation.

Recommended Settings

Application	Setting
Debugging	`warning`
Traceability	No impact
Efficiency	No impact (for simulation) `none` (for production code generation)
Safety precaution	`warning`

Programmatic Use

Parameter: SFUnusedDataAndEventsDiag

Value: 'none' | 'warning' | 'error'

Default: 'warning'

Version History

Introduced in R2010a