What You Need to Build MEX Files

To create a MEX file:

  • Install a MATLAB®-supported compiler. For more information, see Supported and Compatible Compilers. For information about installing a compiler, visit the vendor's website.

  • Assemble your functions and the MATLAB API functions into one or more C/C++ or Fortran source files.

  • Write a gateway function in one of your source files.

  • Use the MATLAB mex command, called a build script, to build a binary MEX file.

  • Use your binary MEX file like any MATLAB function.

If you have multiple compilers installed on your system, see Change Default Compiler.

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