- // Get a hash value for this element;
- uint64_t getHashValue() const {
- uint64_t HashVal = 0;
- for (unsigned i = 0; i < BITWORDS_PER_ELEMENT; ++i) {
- HashVal ^= Bits[i];
- }
- return HashVal;
- }
+};
+
+template <unsigned ElementSize>
+struct ilist_traits<SparseBitVectorElement<ElementSize> >
+ : public ilist_default_traits<SparseBitVectorElement<ElementSize> > {
+ typedef SparseBitVectorElement<ElementSize> Element;
+
+ Element *createSentinel() const { return static_cast<Element *>(&Sentinel); }
+ static void destroySentinel(Element *) {}
+
+ Element *provideInitialHead() const { return createSentinel(); }
+ Element *ensureHead(Element *) const { return createSentinel(); }
+ static void noteHead(Element *, Element *) {}
+
+private:
+ mutable ilist_half_node<Element> Sentinel;