struct fibnode *right;
fibheapkey_t key;
void *data;
+#ifdef __GNUC__
+ __extension__ unsigned long int degree : 31;
+ __extension__ unsigned long int mark : 1;
+#else
unsigned int degree : 31;
unsigned int mark : 1;
+#endif
} *fibnode_t;
extern fibheap_t fibheap_new PARAMS ((void));