getpid.c
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	#include <sys/types.h>

	/*
	* This mex file fails to compile using the LCC compiler that is included
	* in 32-bit version of MATLAB. With MSVC 2008 it does compile.
	*
	* See also http://bugzilla.fcdonders.nl/show_bug.cgi?id=1384
	*/

	#if defined(_WIN32) \|\| defined(_WIN64)
	#include <process.h>
	#else
	#include <unistd.h>
	#endif

	#include "mex.h"

	void mexFunction(int nlhs, mxArray plhs[], int nrhs, const mxArray prhs[])
	{
	unsigned int *pr;
	plhs[0] = mxCreateNumericMatrix(1, 1, mxUINT32_CLASS, mxREAL);
	pr = mxGetData(plhs[0]);
	*pr = (unsigned int)getpid();
	}