mex and the Visual Studio Community 2022 C/C++ compiler

Dear Colleagues,

I have recently installed Visual Studio Community 2022 because the C/C++ compiler is required by Quanser/QUARC. The default installation is not compatible with MATLAB mex so the

>>mex -setup

command returns an error.

After a bit of trial an error I have found that selection of the MSVC v140 - VS 2015 C++ build tools installs the 2015 version of the compiler that is compatibe with mex. Consequwntly, I can set it up mex and I am able to run the Quanser QUARC demos.Please see below the screenshot obtained from the Modify option of the VS Community 2022 installer app.

After this installation I get

>> mex -setup
MEX configured to use 'Microsoft Visual C++ 2015 (C)' for C language compilation.

I am writing to ask if anyone has a experience with the VS Community C/C++ compilers in general and if anything else is needed from this option list. I will update this thread if I find missing options.

Thank you.

BU

[Benjamin Thompson]

No experience here since Community Edition is never allowed at my workplace due to the licensing terms. I seem to recall mex did not support Community Edition until VS 2017. But if it works, let us know...

[Bogdan Udrea]

Thank you Benjamin. At my workplace we are so small and poor that we qualify for the VS Community Edition license. I have double checked VS 2017 with the configuration below and I get the typical mex error of not detected. So I'll revert to VS 2015.

BU

>> mex -setup
Error using mex
Supported compiler not detected. You can install the freely available MinGW-w64 C/C++ compiler; see Install
MinGW-w64 Compiler. For more options, visit https://www.mathworks.com/support/compilers.

[Muhammad Ali Hassan]

Hi Bogdan Udrea,

Thank you so much for sharing the details. I also want to run Quanser/Quarc demo and getting the similar mex error as you were having.

I have done the modification in Visual Studio Community 2022 as per your suggestion but It didn't work for me. I am using Matlab 2021b version. Can you please let me know what Matlab version you were using?

Thanks in advance!

Muhammad Ali

[Lokeshwaran Manohar]

HI Muhammad,

Did you resolve the error? I am in the same scenario as you. Can you please let me know the solution if you had found one?

[Lokeshwaran Manohar]

Hello Muhammad,

Follow this link https://de.mathworks.com/matlabcentral/answers/443349-how-do-i-install-visual-studio-for-use-with-matlab-simulink#:~:text=Note%20that%20the%20Community%20(free,for%20use%20with%20MATLAB%2FSimulink. I downloaded VS2019 and installed with the above instructions. It's working for me. Also the MinGW compiler is working too.

[Walter Roberson]

@Bogdan Udrea

Could you confirm that you are using R2021b ? According to https://www.mathworks.com/support/requirements/previous-releases.html the VS2015 family was not supported for anything in R2021b -- you would have needed VS 2017 or VS 2019 or MinGW or one of the Intel compilers.

Remember to use

mex -setup C++

to set up the C++ compiler -- and remember that when it says VS 2017C++ then that is the C++ compiler, not the C compiler.

[nicholas roche]

Thanks for sharing @Bogdan Udrea - the little detail of which MSCV version to install to get MATLAB to recognise Visaul C++ as a compiler option saved me time today.

[Ben]

For me, none of these comments got it working.

In my case, I could only select the VS C++ build tools within MATLAB, after I had installed the Windows (10) SDK using the VS installer.