static twointsclass * main_source(twointsclass * data){data=new twointsclass;return data;}void main(){twointsclass * data;data=NULL;data=main_source(data);delete [] data;}
static twointsclass * main_source(twointsclass * data){data=new twointsclass[100];return data;}static void main(){twointsclass * data;data=NULL;data=main_source(data);delete [] data;}