MATLAB Code Analysis

Identify and fix issues in MATLAB^® code that prevent C/C++ code generation

Successful C/C++ code generation from MATLAB code depends on compliance with code generation rules and limitations. For example, your MATLAB code must only use MATLAB functions and toolbox functions supported for code generation. To identify and fix issues with your MATLAB code prior to C/C++ code generation, you can use the Code Analyzer and the code generation readiness tool. To check that your MATLAB code produces generated code that works as expected, generate and execute a MEX function, which is executable and testable in the MATLAB environment.

Functions

`coder.runTest`	Run test replacing calls to MATLAB functions with calls to MEX functions
`coder.screener`	Determine if function is suitable for code generation
`getLineColumn`	Find locations of beginning and end of MATLAB code involved in code generation
`textReport`	Export code generation readiness report to base workspace as a character vector (Since R2022a)

Properties

coder.CallSite Properties	Information about a function call site in your MATLAB code (Since R2022a)
coder.CodeFile Properties	Description of file containing text that is involved in code generation
coder.File Properties	Description of file without text that is involved in code generation
coder.Message Properties	Description of message produced during code generation readiness analysis or during code generation
coder.ScreenerInfo Properties	Code generation readiness information (Since R2022a)

Topics

Prepare for Code Generation

Identify Entry-Point Functions and Check MATLAB Code
Identify entry-point functions and check MATLAB code for errors before code generation.
Code Generation Readiness Tool
The code generation readiness tool screens MATLAB code for features and functions that code generation does not support.

Debugging

Check for Issues in MATLAB Code Using MEX Functions
Use MEX functions to verify that the generated code provides the same functionality as the original MATLAB code.
Debugging Strategies
Choose a strategy for detecting and correcting code that is not suitable for code generation.
Debugging Generated MEX Code
Debug MEX code generated from your MATLAB code.
Debug Generated C/C++ Code
Debug standalone C/C++ code generated from your MATLAB code.
Profile MEX Functions by Using MATLAB Profiler
See execution times and code coverage for generated MEX functions in MATLAB Profiler.

Troubleshooting

Resolve Error: Function Is Not Supported for Code Generation
Troubleshoot code generation failure of unsupported MATLAB functions.
Resolve Issue: Variables Must Be Fully Defined Before Use
Troubleshoot code generation errors when variables, including structure fields and class properties, are not defined before use.
Resolve Issue: Cell Array Elements Must Be Fully Defined Before Use
Troubleshoot code generation errors when cell array elements are not defined before use.

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