How do I call matlab member function from C++?

Question

Using mexCallMATLAB(nlhs, plhs, nrhs, prhs, "foo") command we can call a function(here "foo.m") which was wrote in MATLAB from C++.

But what if "foo" is a method of a class?

classdef Foo < handle
    ...
    function out = foo(obj, in)
        ...
    end
end

Is there any straightforward or trick to call MATLAB class member function from C++?

Answer 1

In MATLAB you call a class method just like any other function:

obj.method

is the same as

method(obj)

You can easily create a similar call from within your MEX-file using mexCallMATLAB . If any of the arrays in prhs is of type Foo , then MATLAB will look for a function first within that class' methods.

So for OP's example:

mxArray rhs = <mxArray of type Foo>;
mcArray los;
mexCallMATLAB(1, &lhs, 1, &rhs, "foo");

Answer 2

The Foo object would need to be instantiated somewhere so the easiest thing for this example would be to make the foo method static.

You could then create a Matlab wrapper function which calls Foo.staticfoo(args) and call the Matlab wrapper function using mexCallMATLAB .