Compiling a c++ code in MATLAB R2016a

I am trying to compile a C++ program on MATLAB R2016a on Windows 10. I have worked on other C files in the same version of MATLAB and OS successfully before.

I have completed the 'mex -setup' and also changed the compiler to 'Microsoft Visual C++ 2015 Professional', and changed current directory and the path to the folder which contains this file . Also, as per suggestions on related topics on MATLAB Answers , I tried using addpath() and changing environment variables to the matlabroot folder as well .

I still encounter the same error which says file not found or check spelling , as shown below.

>> mex segment.cpp

Error using mex C:\Users\...\segment.cpp not found; check that you are in the correct current folder, and check the spelling of 'C:\Users\...\segment.cpp'.

I have checked the spelling and tried exist('segment.cpp') which returned 2 , but I might be missing something very simple here .

Can anyone please help me out with this?

Thanks in advance !

[James Tursa]

What does this do?

dir segment.cpp