External Interfaces/API

Examples of Fortran MEX-Files

The following sections include information and examples describing how to pass and manipulate the different data types when working with MEX-files. These topics include:

• A First Example -- Passing a Scalar
• Passing Strings
• Passing Arrays of Strings
• Passing Matrices
• Passing Two or More Inputs or Outputs
• Handling Complex Data
• Dynamically Allocating Memory
• Handling Sparse Matrices
• Calling Functions from Fortran MEX-Files

The MATLAB API provides a set of routines for Fortran that handle double-precision data and strings in MATLAB. For each data type, there is a specific set of functions that you can use for data manipulation.

Note to UNIX Users     The example Fortran files in the directory <matlab>/extern/examples/refbook have extensions .F and .f. The distinction between these extensions is that the .F files need to be preprocessed.

Note    You can find the most recent versions of the example programs from this chapter at the anonymous FTP server, ftp://ftp.mathworks.com/pub/tech-support/docexamples/apiguide/R12/refbook

The %val Construct

A First Example -- Passing a Scalar