void main(){twoints * data;data=NULL;data=(twoints *)calloc(100, sizeof(twoints));{twoints * data_copy=data;twoints * data=data_copy;delete data;}}
static void main(){twoints * data;data=NULL;data=(twoints *)calloc(100, sizeof(twoints));{twoints * data_copy=data;twoints * data=data_copy;free(data);}}