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