A MEX file lets you call a C function from MATLAB. To create a C/C++ MEX file, you need:
The ability to write C or C++ source code. You can create these files with the MATLAB Editor.
A compiler supported by MATLAB. For an up-to-date list of supported compilers, see the Supported and Compatible Compilers website.
mex build script. For more
information, see Executable C/C++ MEX Files.
For information about writing Fortran MEX files, see Fortran Source Files.
For information about using the
to call functions in shared libraries, see Call C Shared Libraries.
For information about writing S-functions using C or C++ code, see your Simulink® documentation.
MEX files are not appropriate for all applications. MATLAB is a high-productivity environment whose specialty is eliminating time-consuming, low-level programming in compiled languages like C or C++. In general, do your programming in MATLAB. Do not use MEX files unless your application requires it.