Generating multiple *.oct* files from a single *.cc* source file to interface a C library to Octave

Question

I have a C library that I want to use from within Octave. Following the tutorial, it seems straight forward: wrap the functions in C++ then mkoctfile them. The problem is: what if I want to have multiple functions definitions (wrappers) in a single source file?

In the mentioned tutorial it is stated

It should be noted that it is perfectly acceptable to have more than one DEFUN_DLD function in a source file. However, there must either be a symbolic link to the oct-file for each of the functions defined in the source code with the DEFUN_DLD macro or the autoload (Function Files) function should be used.

Then in the provided link:

Once Octave finds a file with a name that matches (the called function), the contents of the file are read. If it defines a single function, it is compiled and executed. See Script Files, for more information about how you can define more than one function in a single file.

In this second link, there is no info as to how to load a .oct file with multiple functions in it or how to generate multiple .oct files from a single source file. From what I've understood, the later is the correct approach. How can I do that?

Answer 1

The point of the second link is that you don't load a .oct file with multiple functions in it - at least not from octave's perspective. That's what the symlinks are for - you have symbols A, B, and C in there? Make A.oct, B.oct, and C.oct symbolic links that point at that file and you can use them as if each contained only the symbol you care about.