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@ -69,34 +69,15 @@ public:
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/** Find the smallest item in the priority queue.
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/** Find the smallest item in the priority queue.
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* Return the smallest item, or throw assert if empty. */
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* Return the smallest item, or throw assert if empty. */
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FORCEINLINE Titem_& GetHead() {assert(!IsEmpty()); return *m_items[1];}
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FORCEINLINE Titem_& GetHead()
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{
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/** Insert new item into the priority queue, maintaining heap order. */
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assert(!IsEmpty());
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void Push(Titem_& new_item);
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return *m_items[1];
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}
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/** Remove and return the smallest item from the priority queue. */
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FORCEINLINE Titem_& PopHead() {Titem_& ret = GetHead(); RemoveHead(); return ret;};
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/** Remove the smallest item from the priority queue. */
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void RemoveHead();
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/** Remove item specified by index */
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void RemoveByIdx(int idx);
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/** return index of the item that matches (using &item1 == &item2) the given item. */
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int FindLinear(const Titem_& item) const;
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/** Make the priority queue empty.
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* All remaining items will remain untouched. */
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void Clear() {m_size = 0;};
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/** verifies the heap consistency (added during first YAPF debug phase) */
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void CheckConsistency();
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};
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template <class Titem_>
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/** Insert new item into the priority queue, maintaining heap order.
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FORCEINLINE void CBinaryHeapT<Titem_>::Push(Titem_& new_item)
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* @return false if the queue is full. */
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FORCEINLINE void Push(Titem_& new_item)
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{
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{
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if (IsFull()) {
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if (IsFull()) {
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m_max_size *= 2;
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m_max_size *= 2;
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@ -112,8 +93,16 @@ FORCEINLINE void CBinaryHeapT<Titem_>::Push(Titem_& new_item)
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CheckConsistency();
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CheckConsistency();
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}
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}
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template <class Titem_>
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/** Remove and return the smallest item from the priority queue. */
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FORCEINLINE void CBinaryHeapT<Titem_>::RemoveHead()
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FORCEINLINE Titem_& PopHead()
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{
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Titem_& ret = GetHead();
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RemoveHead();
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return ret;
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}
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/** Remove the smallest item from the priority queue. */
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FORCEINLINE void RemoveHead()
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{
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{
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assert(!IsEmpty());
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assert(!IsEmpty());
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@ -150,8 +139,8 @@ FORCEINLINE void CBinaryHeapT<Titem_>::RemoveHead()
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CheckConsistency();
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CheckConsistency();
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}
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}
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template <class Titem_>
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/** Remove item specified by index */
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inline void CBinaryHeapT<Titem_>::RemoveByIdx(int idx)
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FORCEINLINE void RemoveByIdx(int idx)
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{
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{
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/* at position idx we have a gap now */
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/* at position idx we have a gap now */
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int gap = idx;
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int gap = idx;
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@ -200,8 +189,8 @@ inline void CBinaryHeapT<Titem_>::RemoveByIdx(int idx)
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CheckConsistency();
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CheckConsistency();
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}
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}
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template <class Titem_>
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/** return index of the item that matches (using &item1 == &item2) the given item. */
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inline int CBinaryHeapT<Titem_>::FindLinear(const Titem_& item) const
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FORCEINLINE int FindLinear(const Titem_& item) const
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{
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{
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if (IsEmpty()) return 0;
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if (IsEmpty()) return 0;
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for (ItemPtr *ppI = m_items + 1, *ppLast = ppI + m_size; ppI <= ppLast; ppI++) {
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for (ItemPtr *ppI = m_items + 1, *ppLast = ppI + m_size; ppI <= ppLast; ppI++) {
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@ -212,8 +201,12 @@ inline int CBinaryHeapT<Titem_>::FindLinear(const Titem_& item) const
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return 0;
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return 0;
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}
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}
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template <class Titem_>
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/** Make the priority queue empty.
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FORCEINLINE void CBinaryHeapT<Titem_>::CheckConsistency()
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* All remaining items will remain untouched. */
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FORCEINLINE void Clear() {m_size = 0;}
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/** verifies the heap consistency (added during first YAPF debug phase) */
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FORCEINLINE void CheckConsistency()
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{
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{
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/* enable it if you suspect binary heap doesn't work well */
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/* enable it if you suspect binary heap doesn't work well */
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#if 0
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#if 0
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@ -223,6 +216,6 @@ FORCEINLINE void CBinaryHeapT<Titem_>::CheckConsistency()
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}
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}
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#endif
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#endif
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}
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}
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};
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#endif /* BINARYHEAP_HPP */
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#endif /* BINARYHEAP_HPP */
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