Guidelines for Naming Stateflow Objects

You can name Stateflow^® objects with a combination of alphanumeric and underscore characters.

• Names cannot begin with a numeric character or contain embedded spaces.

• Name length should comply with the maximum identifier length enforced by Simulink^® Coder™ software. You can set the Maximum identifier length parameter. The default is 31 characters and the maximum length you can specify is 256 characters.

• Avoid using reserved keywords to name Stateflow objects. These keywords are part of the action language syntax.

Note

Do not use the file names sf.slx for Simulink models or sf.sfx for standalone Stateflow charts in MATLAB^®. Using these file names can shadow Stateflow program files and result in unpredictable behavior.

Reserved Keywords

Usage in Action Language Syntax	Keywords	Syntax References
Change detection	hasChanged hasChangedFrom hasChangedTo change chg	Detect Changes in Data and Expression Values
Complex data	complex imag real	Operations for Complex Data in Stateflow
Data type operations	cast type	Type Cast Operations Specify Scope and Type of Stateflow Data
Data types	boolean double int8 int16 int32 int64 single uint8 uint16 uint32 uint64	Specify Scope and Type of Stateflow Data
Edge detection	crossing falling rising	Detect Changes in Data and Expression Values
Events	send tick	Broadcast Local Events to Synchronize Parallel States Control Chart Behavior by Using Implicit Events
Interface with MATLAB code	matlab ml this	Access MATLAB Functions and Workspace Data in C Charts Model a Power Window Controller Simulate a Media Player
Literal symbols	false inf t true	Supported Symbols in Actions
Messages	discard forward isvalid length receive send	Control Message Activity in Stateflow Charts
State actions	bind du during en entry ex exit on	Represent Operating Modes by Using States
State activity	enter en exit ex in	Check State Activity by Using the in Operator
String manipulation	ascii2str str2ascii str2double strcat strcmp strcpy strlen substr tostring	Manage Textual Information by Using Strings Note These operator names are reserved keywords only in charts that use C as the action language.
Temporal logic	after at before count duration elapsed et every msec sec temporalCount usec	Control Chart Execution by Using Temporal Logic
Test model simulation	verify (Simulink Test)	Verify Model Simulation by Using When Decomposition (Simulink Test)

Related Topics

• Supported Symbols in Actions
• Operations for Stateflow Data
• Operations for Vectors and Matrices in Stateflow
• Operations for Fixed-Point Data in Stateflow
• Operations for Complex Data in Stateflow