Detect Integer Overflow

Check ID: mathworks.sldv.integeroverflow

Detects integer or fixed-point data overflow errors in your model

Description

This check identifies operations that exceed the data type range for integer or fixed-point operations.

Following the recommendations of this check increases the likelihood of generating MISRA C:2012 compliant code for embedded applications, as well as code that complies with the CERT C, CWE, ISO/IEC TS 17961 standards.

Results and Recommended Actions

Result	Recommended Action
Failed, model incompatible	Resolve the model incompatibility. See Supported and Unsupported Simulink Blocks in Simulink Design Verifier (Simulink Design Verifier) Support Limitations for Model Blocks (Simulink Design Verifier) Support Limitations of Simulink Design Verifier for Simulink Software Features (Simulink Design Verifier) Support Limitations for Stateflow Software Features (Simulink Design Verifier) Support Limitations for MATLAB for Code Generation (Simulink Design Verifier) Also see Handle Incompatibilities with Automatic Stubbing (Simulink Design Verifier).
Integer overflow found in model	To view the conditions that cause the integer overflow, create a harness model. When you simulate the harness, the inputs replicate the error. Click View test case in the Model Advisor report.

Capabilities and Limitations

• Does not run 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.

• Does not support exclusions.

See Also

• MISRA C:2012: Directive 4.1

• ISO/IEC TS 17961: 2013, intoflow

• CERT C, INT30-C and INT32-C

• CWE, CWE-190

• Secure Coding (Embedded Coder)

• Detect and Address Bugs (Simulink Design Verifier)

• Detect Integer Overflow and Division-by-Zero Errors (Simulink Design Verifier)