void main_source(twoints * &data);void main(){twoints * data;data=NULL;main_source(data);}void main_source(twoints * &data){data=new twoints;data->a=0;data->b=0;printStructLine(data);}
static void main(){twoints * data;data=NULL;main_source(data);delete data;}void main_source(twoints * &data){data=new twoints;data->a=0;data->b=0;printStructLine(data);}