Running and Debugging MEX Functions
When you call a MEX function, pass it the same inputs that you
use for the original MATLAB® algorithm. Do not pass
any of the
to a MEX function. You can use these classes with only the
To run a MEX function generated by MATLAB Coder™, you must have licenses for all the toolboxes that the MEX function requires. For example, if you generate a MEX function from a MATLAB algorithm that uses a Computer Vision Toolbox™ function or System object™, to run the MEX function, you must have a Computer Vision Toolbox license.
When you upgrade MATLAB, before running MEX functions with the new version, rebuild the MEX functions.
Debug MEX Functions
To debug your MEX functions, use the
disp function to inspect the
contents of your MEX function variables. You cannot use
save to debug MEX
function variables because code generation does not support it. Code generation does not support
save as extrinsic. You can also use the
fprintf function to inspect the contents of your MEX function
Debug MEX Functions by Using a C/C++ Debugger
To debug your MEX functions by using a C/C++ debugger, set the MEX configuration object
cfg = coder.config('mex'); cfg.EnableDebugging = 1; codegen -config cfg foo_mex
codegen -g foo_mex
foo_mex file is the MEX file that you intend to debug. You can debug
this file by using a C or C++ debugger. For more information on debugging by using a C/C++
debugger on a Microsoft Windows platform, see Debug on Microsoft Windows Platforms.