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A. Dynamically Linked Functions

Octave has the possibility of including compiled code as dynamically linked extensions and then using these extensions as if they were part of Octave itself. Octave can call C++ code through its native oct-file interface or C code through its mex interface. It can also indirectly call functions written in any other language through a simple wrapper. The reasons to write code in a compiled language might be either to link to an existing piece of code and allow it to be used within Octave, or to allow improved performance for key pieces of code.

Before going further, you should first determine if you really need to use dynamically linked functions at all. Before proceeding with writing any dynamically linked function to improve performance you should address ask yourself

Also, as oct- and mex-files are dynamically linked to Octave, they introduce the possibility of Octave crashing due to errors in the user code. For example a segmentation violation in the user's code will cause Octave to abort.


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