How do I call custom MATLAB functions in code generation templates (.cgt) files?

Wynand asked: 2024-05-08 Code Generation , Embedded Coder , MATLAB

Learn how to call custom MATLAB functions within Code Generation Templates (CGT files) for efficient code generation. Streamline your workflow & generate optimi

Expert Answer

John Michell answered . 2025-07-30 03:28:59

Code generation templates are eventually generated into .tlc files if you try to call functions within them. This means you can leverage functions from TLC programming.

In TLC programming, you would use the FEVAL function to call any MATLAB functions. Similarly, you can use the same function n your .cgt file, like so:

*       MATLAB Version: %

would become

*       MATLAB Version: %

The above will allow you to call custom MATLAB functions from within your .cgt file.

Another way would be to use the same syntax original syntax

* MATLAB Version: %

but also write a custom file processing template that defines the above function. You would attach this file to the model using "Configuration parameters -> Code generation -> templates -> custom file processing" and put your .tlc file there.

The contents of your custom TLC would look like this:

%function getMatlabVersion() void
%assign outBuffer = ""
%openfile outBuffer
%assign result = FEVAL("getMatlabVersion")
%
%closefile outBuffer
%return outBuffer
%endfunction

This requires knowledge of TLC programming. Refer to the following links for more information on the above:

Custom File Processing

TLC Programming

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