void main(){twoints * data;twoints * &data_ref=data;data=NULL;data=(twoints *)malloc(100*sizeof(twoints));{twoints * data=data_ref;delete data;}}
static void main(){twoints * data;twoints * &data_ref=data;data=NULL;data=(twoints *)malloc(100*sizeof(twoints));{twoints * data=data_ref;free(data);}}