Mex error while running a code matlab 2021a

Hi, i'm new to matlab so i can't figure out where the error is. Could somone tell me how I can rectify it

I'm using this code which sombody had already made.

Thanks in advance

function Create_Data()

% This function creates the model data depicted in Figure 4-6 of

%

% Characterization of K-Complexes and Slow Wave Activity in a Neural Mass Model

% A Weigenand, M Schellenberger Costa, H-VV Ngo, JC Claussen, T Martinetz

% PLoS Computational Biology. 2014;10:e1003923

% Move to source folder(assuming it contains the Figures folder

cd ..;

% Check if the executable exists and compile if needed

if(exist('Cortex_mex.mesa64', 'file')==0)

mex CXXFLAGS="\$CXXFLAGS -std=c++11 -O3" Cortex_mex.cpp Cortical_Column.cpp;

end

% Add the path to the simulation routine

addpath(pwd);

% Go back into figures folder

cd Figures;

% Time series

Data_Time_Series(1);

Data_Time_Series(2);

% Time series

Data_Stimulation();

end

First I got this error

>> Create_Data

Building with 'MinGW64 Compiler (C++)'.

Error using mex

g++: error: \-fexceptions: No such file or directory

So, I put D:\MatlabFiles\cortex_mex.cpp

>> D:\MatlabFiles\cortex_mex.cpp

D:\MatlabFiles\cortex_mex.cpp

↑

Invalid use of operator.

But it still said this

Answer 1

[Lokesh]

Hi akshara,

It appears that the first issue is related to a compiler flag error when trying to compile a C++ file using the 'mex' function.

As a workaround, adjust the 'mex' command in your MATLAB function by ensuring no backslash precedes '-fexceptions'.

mex CXXFLAGS="$CXXFLAGS -std=c++11 -O3" Cortex_mex.cpp Cortical_Column.cpp;

Refer to this MATLAB Answer for more information:

https://www.mathworks.com/matlabcentral/answers/279171

The second issue involves trying to directly run a C++ file in MATLAB and incorrectly using a file path as a command. MATLAB does not support the direct execution of C++ files. Instead, C++ code must be compiled into a MEX file using the 'mex' command. Additionally, typing a file path directly into the MATLAB Command Window as a command, such as 'D:\MatlabFiles\cortex_mex.cpp', is not a valid operation. If you are trying to change the current working directory to where your files are located, use the cd command followed by the path, like 'cd D:\MatlabFiles'.

Refer to the following documentation for more information on 'mex' function:

https://www.mathworks.com/help/matlab/ref/mex.html