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#include "mex.h"
#define DWORD long
#define NUMBER_OF_STRUCTS (sizeof(friends)/sizeof(struct phonebook))
#define NUMBER_OF_FIELDS (sizeof(field_names)/sizeof(*field_names))
void mexFunction(int nlhs,
mxArray * plhs[] , int nrhs,const mxArray * pahs[])
{
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#define LIST_HEAD(name) \
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