use MATLAB Coder to convert matlab code to mex

I want to use MATLAB Coder to convert matlab code to mex,when I was taking "CHECK FOR ISSUES" this step, run-time errors were detected with my test code, the test output was " Unrecognized function or variable 'main' ", how should I solve this problem?

Answer 1

[Amish]

Hi Zewen,

I see that you are facing the error ''Unrecognized function or variable 'main' ". The error message "Unrecognized function or variable 'main'" typically occurs when MATLAB Coder cannot find a function named 'main' that you are trying to use in your code.

This can happen for a few reasons, especially if you're coming from a programming background where main is a conventional entry point for programs (such as in C or C++). In MATLAB, the entry point for a program can be any function, and the name main is not special unless you have defined it yourself.

You can solve this issue by making sure of the following points:

1. Ensure that you have a function named 'main' defined in a file named 'main.m'.
2. Ensure that the file containing the main function is in the current folder or in MATLAB's search path. You can add a folder to MATLAB's search path using the "addpath" function.
3. Make sure you are specifying "main" as the entry-point function if that's your intention, and ensure that it matches the name of the function you intend to use. This can be done programatically or using the GUI.
4. If you're using MATLAB Coder through commands, ensure you specify main correctly in your 'codegen' command. A sample command would look like :

codegen -config:mex main -args {input_example}

Hope this helps!