Test code for http://stackoverflow.com/q/11479139/344821

.gitignore

*.o
*.so
*.a
*.mex*
test_s.cpp
test
test_s

Makefile

CXX=g++
MEX=mex
MEX_EXT=mexmaci64
CFLAGS=-I/usr/local/include

.PHONY: all clean run
all: test test_s test.$(MEX_EXT) test_s.$(MEX_EXT)
clean:
	rm -f stubby.o libstubby.{a,so} test{,_s}{,.$(MEX_EXT)} test_s.cpp

run: all
	./test
	./test_s
	echo | matlab -nosplash -nodesktop -r test
	echo | matlab -nosplash -nodesktop -r test_s

test: test.cpp libstubby.so the_enum.hpp
	$(CXX) $(CFLAGS) -o test test.cpp libstubby.so -DNO_MEX

test_s: test.cpp libstubby.a the_enum.hpp
	$(CXX) $(CFLAGS) -o test_s test.cpp libstubby.a -DNO_MEX

test_s.cpp:
	ln -sf test.cpp test_s.cpp

test.$(MEX_EXT): test_s.cpp libstubby.so the_enum.hpp
	$(MEX) $(CFLAGS) test.cpp libstubby.so

test_s.$(MEX_EXT): test.cpp libstubby.a the_enum.hpp
	$(MEX) $(CFLAGS) test_s.cpp libstubby.a

libstubby.so: stubby.cpp stubby.hpp the_enum.hpp
	$(CXX) $(CFLAGS) -shared -o libstubby.so stubby.cpp

libstubby.a: stubby.o
	ar rcs libstubby.a stubby.o

stubby.o: stubby.cpp stubby.hpp the_enum.hpp
	$(CXX) $(CFLAGS) -c -o stubby.o stubby.cpp

stubby.cpp

#include "stubby.hpp"
#include <cstdio>
boost::any the_function() {
    return boost::any(library::el_two);
}

stubby.hpp

#ifndef _STUBBY_HPP
#define _STUBBY_HPP
#include <boost/any.hpp>
#include "the_enum.hpp"
boost::any the_function();
#endif

test.cpp

    #include "stubby.hpp"
    #include <boost/any.hpp>
    
    #ifdef NO_MEX
    #include <cstdio>
    using std::printf;
    int main() {
    #else
    #include "mex.h"
    void mexFunction(int nlhs, mxArray **plhs, int nrhs, const mxArray **prsh) {
    #endif
        using library::the_enum_t;
    
        boost::any val_any = the_function();
        printf("%s (equal: %d)\n",
                val_any.type().name(),
                val_any.type() == typeid(the_enum_t));
    }

the_enum.hpp

#ifndef _THE_ENUM
#define _THE_ENUM
namespace library {
    enum the_enum_t { el_one, el_two, el_three };
}
#endif