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How can I debug mex files without a visual studio license?

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Daniel Poiesz
Daniel Poiesz on 17 Jul 2018
Edited: Daniel Poiesz on 20 Jul 2018
I already used up a trial license and need to learn how some mex c++ code is being executed. It doesn't seem worth it to pay for Visual Studio so I can debug MATLAB code. Are there instructions to use eclipse or another opensource method?
MATLAB version 9.4, 2018a


OCDER on 17 Jul 2018
I'm not aware of anything else. You could just do what I do without VB - stare very closely at each line of code, work out what it does in the head, and place mexPrintf statements at checkpoints to see what's going on... Definitely challenges you to memorize and predict C++ behavior, as errors are costly. Maybe there's a better free way - I'll keep an eye on this post to see what the other's do.
Daniel Poiesz
Daniel Poiesz on 17 Jul 2018
Thanks for the advice. I'll look into mexPrintf, the whole mex concept is new to me.

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Accepted Answer

CP on 17 Jul 2018
I use Microsoft Visual c++ 2010 Express to debug c++ files that get compiled into mex functions. I believe the license is free. You just have to go to the website and sign up for the key, and they will send it your email.

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Daniel Poiesz
Daniel Poiesz on 20 Jul 2018
Thank you, I should qualify for this license since I am only debugging open source code and not developing anything new.
For other readers the express line is now called Visual Studio Community.

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