When running cpp file in matlab, there is a problem of calling mex in error, how to solve it

Answer 1

[Shreeya]

Hey

The error code in the output is C3861. This error code suggests that an identifier is missing. You can start by looking if the appropriate headers are declared in the files. I'm also linking the MS documentation of this error code if the suggested solution does not resolve the issue:

https://learn.microsoft.com/en-us/cpp/error-messages/compiler-errors-2/compiler-error-c3861?view=msvc-170

You can also have a look at this answer: https://www.mathworks.com/matlabcentral/answers/601660-mex-error-c3861-mxgetdoubles-cannot-find-the-identifier-mxgetuint8s-cannot-find-the-identif

The answer in this link suggests that certain functions require a specific MATLAB version as a flag.

Also have a look at the documentation of mxGetPtr: https://www.mathworks.com/help/matlab/apiref/mxgetpr.html

Looks like this function is depreciated, updating the code might help too

Let me know if this resolves the problem!