jc_0451: Use of unary minus on unsigned integers
Since R2020a
Guideline Publication
Control Algorithm Modeling Guidelines - Using MATLAB®, Simulink®, and Stateflow®
Sub ID Recommendations
NA-MAAB — a
JMAAB — a
MATLAB Versions
All
Rule
Sub ID a
Unary minus shall not be used on unsigned integers.
Custom Parameter
Not Applicable
Example — Correct
Example — Incorrect
Negative values cannot be input into 16-bit environments. (Negative values can be input into 32-bit environments.)
Rationale
Sub ID a:
As the results are depend on the execution environment, unintended results can occur.
Verification
Model Advisor check: Check usage of unary minus operations in Stateflow charts (Simulink Check)
Last Changed
R2020a
Version History
Introduced in R2020a