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Detemplatize NodeRef.
It is now possible to navigate the B+-tree using NodeRef::subtree() and NodeRef::size() without knowing the key and value template types used in the tree. llvm-svn: 119880
This commit is contained in:
Jakob Stoklund Olesen
parent
4a44e92fd1
commit
de3ebc098a
@ -378,14 +378,7 @@ struct CacheAlignedPointerTraits {
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enum { NumLowBitsAvailable = Log2CacheLine };
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};
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template <typename KeyT, typename ValT, typename Traits>
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class NodeRef {
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public:
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typedef LeafNode<KeyT, ValT, NodeSizer<KeyT, ValT>::LeafSize, Traits> Leaf;
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typedef BranchNode<KeyT, ValT, NodeSizer<KeyT, ValT>::BranchSize,
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Traits> Branch;
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private:
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PointerIntPair<void*, Log2CacheLine, unsigned, CacheAlignedPointerTraits> pip;
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public:
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@ -395,11 +388,11 @@ public:
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/// operator bool - Detect a null ref.
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operator bool() const { return pip.getOpaqueValue(); }
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/// NodeRef - Create a reference to the leaf node p with n elements.
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NodeRef(Leaf *p, unsigned n) : pip(p, n - 1) {}
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/// NodeRef - Create a reference to the branch node p with n elements.
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NodeRef(Branch *p, unsigned n) : pip(p, n - 1) {}
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/// NodeRef - Create a reference to the node p with n elements.
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template <typename NodeT>
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NodeRef(NodeT *p, unsigned n) : pip(p, n - 1) {
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assert(n <= NodeT::Capacity && "Size too big for node");
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}
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/// size - Return the number of elements in the referenced node.
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unsigned size() const { return pip.getInt() + 1; }
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@ -407,16 +400,17 @@ public:
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/// setSize - Update the node size.
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void setSize(unsigned n) { pip.setInt(n - 1); }
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/// leaf - Return the referenced leaf node.
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/// Note there are no dynamic type checks.
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Leaf &leaf() const {
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return *reinterpret_cast<Leaf*>(pip.getPointer());
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/// subtree - Access the i'th subtree reference in a branch node.
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/// This depends on branch nodes storing the NodeRef array as their first
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/// member.
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NodeRef &subtree(unsigned i) {
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return reinterpret_cast<NodeRef*>(pip.getPointer())[i];
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}
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/// branch - Return the referenced branch node.
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/// Note there are no dynamic type checks.
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Branch &branch() const {
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return *reinterpret_cast<Branch*>(pip.getPointer());
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/// get - Dereference as a NodeT reference.
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template <typename NodeT>
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NodeT &get() const {
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return *reinterpret_cast<NodeT*>(pip.getPointer());
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}
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bool operator==(const NodeRef &RHS) const {
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@ -442,12 +436,12 @@ public:
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//
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// These constraints are always satisfied:
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//
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// - Traits::stopLess(key[i].start, key[i].stop) - Non-empty, sane intervals.
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// - Traits::stopLess(start(i), stop(i)) - Non-empty, sane intervals.
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//
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// - Traits::stopLess(key[i].stop, key[i + 1].start) - Sorted.
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// - Traits::stopLess(stop(i), start(i + 1) - Sorted.
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//
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// - val[i] != val[i + 1] ||
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// !Traits::adjacent(key[i].stop, key[i + 1].start) - Fully coalesced.
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// - value(i) != value(i + 1) || !Traits::adjacent(stop(i), start(i + 1))
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// - Fully coalesced.
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//
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//===----------------------------------------------------------------------===//
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@ -634,14 +628,13 @@ extendStop(unsigned i, unsigned Size, KeyT b) {
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//===----------------------------------------------------------------------===//
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template <typename KeyT, typename ValT, unsigned N, typename Traits>
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class BranchNode : public NodeBase<NodeRef<KeyT, ValT, Traits>, KeyT, N> {
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typedef NodeRef<KeyT, ValT, Traits> NodeRefT;
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class BranchNode : public NodeBase<NodeRef, KeyT, N> {
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public:
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const KeyT &stop(unsigned i) const { return this->second[i]; }
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const NodeRefT &subtree(unsigned i) const { return this->first[i]; }
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const NodeRef &subtree(unsigned i) const { return this->first[i]; }
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KeyT &stop(unsigned i) { return this->second[i]; }
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NodeRefT &subtree(unsigned i) { return this->first[i]; }
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NodeRef &subtree(unsigned i) { return this->first[i]; }
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/// findFrom - Find the first subtree after i that may contain x.
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/// @param i Starting index for the search.
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@ -675,7 +668,7 @@ public:
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/// safeLookup - Get the subtree containing x, Assuming that x is in range.
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/// @param x Key to search for.
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/// @return Subtree containing x
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NodeRefT safeLookup(KeyT x) const {
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NodeRef safeLookup(KeyT x) const {
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return subtree(safeFind(0, x));
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}
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@ -684,7 +677,7 @@ public:
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/// @param Size Number of elements in node.
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/// @param Node Subtree to insert.
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/// @param Stop Last key in subtree.
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void insert(unsigned i, unsigned Size, NodeRefT Node, KeyT Stop) {
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void insert(unsigned i, unsigned Size, NodeRef Node, KeyT Stop) {
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assert(Size < N && "branch node overflow");
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assert(i <= Size && "Bad insert position");
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this->shift(i, Size);
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@ -700,7 +693,7 @@ public:
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errs() << "\"];\n";
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for (unsigned i = 0; i != Size; ++i)
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errs() << " N" << this << ":s" << i << " -> N"
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<< &subtree(i).branch() << ";\n";
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<< &subtree(i).template get<BranchNode>() << ";\n";
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}
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#endif
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@ -717,10 +710,10 @@ template <typename KeyT, typename ValT,
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unsigned N = IntervalMapImpl::NodeSizer<KeyT, ValT>::LeafSize,
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typename Traits = IntervalMapInfo<KeyT> >
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class IntervalMap {
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typedef IntervalMapImpl::NodeRef<KeyT, ValT, Traits> NodeRef;
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typedef IntervalMapImpl::NodeSizer<KeyT, ValT> NodeSizer;
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typedef typename NodeRef::Leaf Leaf;
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typedef typename NodeRef::Branch Branch;
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typedef IntervalMapImpl::NodeSizer<KeyT, ValT> Sizer;
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typedef IntervalMapImpl::LeafNode<KeyT, ValT, Sizer::LeafSize, Traits> Leaf;
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typedef IntervalMapImpl::BranchNode<KeyT, ValT, Sizer::BranchSize, Traits>
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Branch;
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typedef IntervalMapImpl::LeafNode<KeyT, ValT, N, Traits> RootLeaf;
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typedef IntervalMapImpl::IdxPair IdxPair;
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@ -728,11 +721,12 @@ class IntervalMap {
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// corresponding RootBranch capacity.
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enum {
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DesiredRootBranchCap = (sizeof(RootLeaf) - sizeof(KeyT)) /
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(sizeof(KeyT) + sizeof(NodeRef)),
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(sizeof(KeyT) + sizeof(IntervalMapImpl::NodeRef)),
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RootBranchCap = DesiredRootBranchCap ? DesiredRootBranchCap : 1
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};
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typedef IntervalMapImpl::BranchNode<KeyT, ValT, RootBranchCap, Traits> RootBranch;
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typedef IntervalMapImpl::BranchNode<KeyT, ValT, RootBranchCap, Traits>
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RootBranch;
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// When branched, we store a global start key as well as the branch node.
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struct RootBranchData {
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@ -746,7 +740,7 @@ class IntervalMap {
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};
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public:
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typedef typename NodeSizer::Allocator Allocator;
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typedef typename Sizer::Allocator Allocator;
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private:
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// The root data is either a RootLeaf or a RootBranchData instance.
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@ -837,8 +831,9 @@ private:
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bool branched() const { return height > 0; }
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ValT treeSafeLookup(KeyT x, ValT NotFound) const;
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void visitNodes(void (IntervalMap::*f)(NodeRef, unsigned Level));
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void deleteNode(NodeRef Node, unsigned Level);
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void visitNodes(void (IntervalMap::*f)(IntervalMapImpl::NodeRef,
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unsigned Level));
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void deleteNode(IntervalMapImpl::NodeRef Node, unsigned Level);
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public:
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explicit IntervalMap(Allocator &a) : height(0), rootSize(0), allocator(a) {
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@ -933,7 +928,7 @@ public:
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#ifndef NDEBUG
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void dump();
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void dumpNode(NodeRef Node, unsigned Height);
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void dumpNode(IntervalMapImpl::NodeRef Node, unsigned Height);
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#endif
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};
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@ -944,10 +939,10 @@ ValT IntervalMap<KeyT, ValT, N, Traits>::
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treeSafeLookup(KeyT x, ValT NotFound) const {
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assert(branched() && "treeLookup assumes a branched root");
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NodeRef NR = rootBranch().safeLookup(x);
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IntervalMapImpl::NodeRef NR = rootBranch().safeLookup(x);
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for (unsigned h = height-1; h; --h)
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NR = NR.branch().safeLookup(x);
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return NR.leaf().safeLookup(x, NotFound);
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NR = NR.get<Branch>().safeLookup(x);
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return NR.get<Leaf>().safeLookup(x, NotFound);
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}
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@ -956,6 +951,7 @@ treeSafeLookup(KeyT x, ValT NotFound) const {
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template <typename KeyT, typename ValT, unsigned N, typename Traits>
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IntervalMapImpl::IdxPair IntervalMap<KeyT, ValT, N, Traits>::
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branchRoot(unsigned Position) {
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using namespace IntervalMapImpl;
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// How many external leaf nodes to hold RootLeaf+1?
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const unsigned Nodes = RootLeaf::Capacity / Leaf::Capacity + 1;
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@ -975,17 +971,17 @@ branchRoot(unsigned Position) {
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NodeRef node[Nodes];
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for (unsigned n = 0; n != Nodes; ++n) {
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node[n] = NodeRef(allocLeaf(), size[n]);
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node[n].leaf().copy(rootLeaf(), pos, 0, size[n]);
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node[n].template get<Leaf>().copy(rootLeaf(), pos, 0, size[n]);
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pos += size[n];
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}
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// Destroy the old leaf node, construct branch node instead.
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switchRootToBranch();
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for (unsigned n = 0; n != Nodes; ++n) {
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rootBranch().stop(n) = node[n].leaf().stop(size[n]-1);
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rootBranch().stop(n) = node[n].template get<Leaf>().stop(size[n]-1);
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rootBranch().subtree(n) = node[n];
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}
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rootBranchStart() = node[0].leaf().start(0);
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rootBranchStart() = node[0].template get<Leaf>().start(0);
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rootSize = Nodes;
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return NewOffset;
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}
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@ -995,6 +991,7 @@ branchRoot(unsigned Position) {
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template <typename KeyT, typename ValT, unsigned N, typename Traits>
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IntervalMapImpl::IdxPair IntervalMap<KeyT, ValT, N, Traits>::
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splitRoot(unsigned Position) {
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using namespace IntervalMapImpl;
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// How many external leaf nodes to hold RootBranch+1?
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const unsigned Nodes = RootBranch::Capacity / Branch::Capacity + 1;
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@ -1014,12 +1011,12 @@ splitRoot(unsigned Position) {
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NodeRef Node[Nodes];
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for (unsigned n = 0; n != Nodes; ++n) {
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Node[n] = NodeRef(allocBranch(), Size[n]);
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Node[n].branch().copy(rootBranch(), Pos, 0, Size[n]);
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Node[n].template get<Branch>().copy(rootBranch(), Pos, 0, Size[n]);
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Pos += Size[n];
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}
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for (unsigned n = 0; n != Nodes; ++n) {
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rootBranch().stop(n) = Node[n].branch().stop(Size[n]-1);
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rootBranch().stop(n) = Node[n].template get<Branch>().stop(Size[n]-1);
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rootBranch().subtree(n) = Node[n];
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}
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rootSize = Nodes;
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@ -1029,10 +1026,10 @@ splitRoot(unsigned Position) {
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/// visitNodes - Visit each external node.
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template <typename KeyT, typename ValT, unsigned N, typename Traits>
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void IntervalMap<KeyT, ValT, N, Traits>::
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visitNodes(void (IntervalMap::*f)(NodeRef, unsigned Height)) {
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visitNodes(void (IntervalMap::*f)(IntervalMapImpl::NodeRef, unsigned Height)) {
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if (!branched())
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return;
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SmallVector<NodeRef, 4> Refs, NextRefs;
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SmallVector<IntervalMapImpl::NodeRef, 4> Refs, NextRefs;
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// Collect level 0 nodes from the root.
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for (unsigned i = 0; i != rootSize; ++i)
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@ -1041,9 +1038,8 @@ visitNodes(void (IntervalMap::*f)(NodeRef, unsigned Height)) {
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// Visit all branch nodes.
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for (unsigned h = height - 1; h; --h) {
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for (unsigned i = 0, e = Refs.size(); i != e; ++i) {
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Branch &B = Refs[i].branch();
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for (unsigned j = 0, s = Refs[i].size(); j != s; ++j)
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NextRefs.push_back(B.subtree(j));
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NextRefs.push_back(Refs[i].subtree(j));
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(this->*f)(Refs[i], h);
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}
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Refs.clear();
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@ -1057,11 +1053,11 @@ visitNodes(void (IntervalMap::*f)(NodeRef, unsigned Height)) {
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template <typename KeyT, typename ValT, unsigned N, typename Traits>
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void IntervalMap<KeyT, ValT, N, Traits>::
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deleteNode(NodeRef Node, unsigned Level) {
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deleteNode(IntervalMapImpl::NodeRef Node, unsigned Level) {
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if (Level)
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deleteBranch(&Node.branch());
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deleteBranch(&Node.get<Branch>());
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else
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deleteLeaf(&Node.leaf());
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deleteLeaf(&Node.get<Leaf>());
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}
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template <typename KeyT, typename ValT, unsigned N, typename Traits>
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@ -1077,11 +1073,11 @@ clear() {
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#ifndef NDEBUG
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template <typename KeyT, typename ValT, unsigned N, typename Traits>
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void IntervalMap<KeyT, ValT, N, Traits>::
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dumpNode(NodeRef Node, unsigned Height) {
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dumpNode(IntervalMapImpl::NodeRef Node, unsigned Height) {
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if (Height)
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Node.branch().dump(Node.size());
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Node.get<Branch>().dump(Node.size());
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else
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Node.leaf().dump(Node.size());
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Node.get<Leaf>().dump(Node.size());
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}
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template <typename KeyT, typename ValT, unsigned N, typename Traits>
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@ -1106,7 +1102,7 @@ class IntervalMap<KeyT, ValT, N, Traits>::const_iterator :
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public std::iterator<std::bidirectional_iterator_tag, ValT> {
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protected:
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friend class IntervalMap;
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typedef std::pair<NodeRef, unsigned> PathEntry;
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typedef std::pair<IntervalMapImpl::NodeRef, unsigned> PathEntry;
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typedef SmallVector<PathEntry, 4> Path;
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// The map referred to.
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@ -1121,7 +1117,7 @@ protected:
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// Otherwise, when branched these conditions hold:
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//
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// 1. path.front().first == rootBranch().subtree(rootOffset)
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// 2. path[i].first == path[i-1].first.branch().subtree(path[i-1].second)
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// 2. path[i].first == path[i-1].first.subtree(path[i-1].second)
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// 3. path.size() == map->height.
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//
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// Thus, path.back() always refers to the current leaf node unless the root is
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@ -1138,14 +1134,14 @@ protected:
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return map->branched();
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}
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NodeRef pathNode(unsigned h) const { return path[h].first; }
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NodeRef &pathNode(unsigned h) { return path[h].first; }
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IntervalMapImpl::NodeRef pathNode(unsigned h) const { return path[h].first; }
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IntervalMapImpl::NodeRef &pathNode(unsigned h) { return path[h].first; }
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unsigned pathOffset(unsigned h) const { return path[h].second; }
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unsigned &pathOffset(unsigned h) { return path[h].second; }
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Leaf &treeLeaf() const {
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assert(branched() && path.size() == map->height);
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return path.back().first.leaf();
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return path.back().first.get<Leaf>();
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}
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unsigned treeLeafSize() const {
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assert(branched() && path.size() == map->height);
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@ -1161,21 +1157,21 @@ protected:
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}
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// Get the next node ptr for an incomplete path.
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NodeRef pathNextDown() {
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IntervalMapImpl::NodeRef pathNextDown() {
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assert(path.size() < map->height && "Path is already complete");
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if (path.empty())
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return map->rootBranch().subtree(rootOffset);
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else
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return path.back().first.branch().subtree(path.back().second);
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return path.back().first.subtree(path.back().second);
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}
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void pathFillLeft();
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void pathFillFind(KeyT x);
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void pathFillRight();
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NodeRef leftSibling(unsigned level) const;
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NodeRef rightSibling(unsigned level) const;
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IntervalMapImpl::NodeRef leftSibling(unsigned level) const;
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IntervalMapImpl::NodeRef rightSibling(unsigned level) const;
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void treeIncrement();
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void treeDecrement();
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@ -1300,10 +1296,10 @@ public:
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template <typename KeyT, typename ValT, unsigned N, typename Traits>
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void IntervalMap<KeyT, ValT, N, Traits>::
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const_iterator::pathFillLeft() {
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NodeRef NR = pathNextDown();
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IntervalMapImpl::NodeRef NR = pathNextDown();
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for (unsigned i = map->height - path.size() - 1; i; --i) {
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path.push_back(PathEntry(NR, 0));
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NR = NR.branch().subtree(0);
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NR = NR.subtree(0);
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}
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path.push_back(PathEntry(NR, 0));
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}
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@ -1312,24 +1308,24 @@ const_iterator::pathFillLeft() {
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template <typename KeyT, typename ValT, unsigned N, typename Traits>
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void IntervalMap<KeyT, ValT, N, Traits>::
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const_iterator::pathFillFind(KeyT x) {
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NodeRef NR = pathNextDown();
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IntervalMapImpl::NodeRef NR = pathNextDown();
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for (unsigned i = map->height - path.size() - 1; i; --i) {
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unsigned p = NR.branch().safeFind(0, x);
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unsigned p = NR.get<Branch>().safeFind(0, x);
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path.push_back(PathEntry(NR, p));
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NR = NR.branch().subtree(p);
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NR = NR.subtree(p);
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}
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path.push_back(PathEntry(NR, NR.leaf().safeFind(0, x)));
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path.push_back(PathEntry(NR, NR.get<Leaf>().safeFind(0, x)));
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}
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// pathFillRight - Complete path by adding rightmost entries.
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template <typename KeyT, typename ValT, unsigned N, typename Traits>
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void IntervalMap<KeyT, ValT, N, Traits>::
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const_iterator::pathFillRight() {
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NodeRef NR = pathNextDown();
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IntervalMapImpl::NodeRef NR = pathNextDown();
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for (unsigned i = map->height - path.size() - 1; i; --i) {
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unsigned p = NR.size() - 1;
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path.push_back(PathEntry(NR, p));
|
||||
NR = NR.branch().subtree(p);
|
||||
NR = NR.subtree(p);
|
||||
}
|
||||
path.push_back(PathEntry(NR, NR.size() - 1));
|
||||
}
|
||||
@ -1338,9 +1334,9 @@ const_iterator::pathFillRight() {
|
||||
/// @param level 0 is just below the root, map->height - 1 for the leaves.
|
||||
/// @return The left sibling NodeRef, or NULL.
|
||||
template <typename KeyT, typename ValT, unsigned N, typename Traits>
|
||||
typename IntervalMap<KeyT, ValT, N, Traits>::NodeRef
|
||||
IntervalMap<KeyT, ValT, N, Traits>::
|
||||
IntervalMapImpl::NodeRef IntervalMap<KeyT, ValT, N, Traits>::
|
||||
const_iterator::leftSibling(unsigned level) const {
|
||||
using namespace IntervalMapImpl;
|
||||
assert(branched() && "Not at a branched node");
|
||||
assert(level <= path.size() && "Bad level");
|
||||
|
||||
@ -1355,12 +1351,12 @@ const_iterator::leftSibling(unsigned level) const {
|
||||
|
||||
// NR is the subtree containing our left sibling.
|
||||
NodeRef NR = h ?
|
||||
pathNode(h - 1).branch().subtree(pathOffset(h - 1) - 1) :
|
||||
pathNode(h - 1).subtree(pathOffset(h - 1) - 1) :
|
||||
map->rootBranch().subtree(rootOffset - 1);
|
||||
|
||||
// Keep right all the way down.
|
||||
for (; h != level; ++h)
|
||||
NR = NR.branch().subtree(NR.size() - 1);
|
||||
NR = NR.subtree(NR.size() - 1);
|
||||
return NR;
|
||||
}
|
||||
|
||||
@ -1368,9 +1364,9 @@ const_iterator::leftSibling(unsigned level) const {
|
||||
/// @param level 0 is just below the root, map->height - 1 for the leaves.
|
||||
/// @return The right sibling NodeRef, or NULL.
|
||||
template <typename KeyT, typename ValT, unsigned N, typename Traits>
|
||||
typename IntervalMap<KeyT, ValT, N, Traits>::NodeRef
|
||||
IntervalMap<KeyT, ValT, N, Traits>::
|
||||
IntervalMapImpl::NodeRef IntervalMap<KeyT, ValT, N, Traits>::
|
||||
const_iterator::rightSibling(unsigned level) const {
|
||||
using namespace IntervalMapImpl;
|
||||
assert(branched() && "Not at a branched node");
|
||||
assert(level <= this->path.size() && "Bad level");
|
||||
|
||||
@ -1385,12 +1381,12 @@ const_iterator::rightSibling(unsigned level) const {
|
||||
|
||||
// NR is the subtree containing our right sibling.
|
||||
NodeRef NR = h ?
|
||||
pathNode(h - 1).branch().subtree(pathOffset(h - 1) + 1) :
|
||||
pathNode(h - 1).subtree(pathOffset(h - 1) + 1) :
|
||||
map->rootBranch().subtree(rootOffset + 1);
|
||||
|
||||
// Keep left all the way down.
|
||||
for (; h != level; ++h)
|
||||
NR = NR.branch().subtree(0);
|
||||
NR = NR.subtree(0);
|
||||
return NR;
|
||||
}
|
||||
|
||||
@ -1493,7 +1489,7 @@ class IntervalMap<KeyT, ValT, N, Traits>::iterator : public const_iterator {
|
||||
|
||||
void setNodeSize(unsigned Level, unsigned Size);
|
||||
void setNodeStop(unsigned Level, KeyT Stop);
|
||||
void insertNode(unsigned Level, NodeRef Node, KeyT Stop);
|
||||
void insertNode(unsigned Level, IntervalMapImpl::NodeRef Node, KeyT Stop);
|
||||
void overflowLeaf();
|
||||
void treeInsert(KeyT a, KeyT b, ValT y);
|
||||
|
||||
@ -1512,8 +1508,7 @@ void IntervalMap<KeyT, ValT, N, Traits>::
|
||||
iterator::setNodeSize(unsigned Level, unsigned Size) {
|
||||
this->pathNode(Level).setSize(Size);
|
||||
if (Level)
|
||||
this->pathNode(Level-1).branch()
|
||||
.subtree(this->pathOffset(Level-1)).setSize(Size);
|
||||
this->pathNode(Level-1).subtree(this->pathOffset(Level-1)).setSize(Size);
|
||||
else
|
||||
this->map->rootBranch().subtree(this->rootOffset).setSize(Size);
|
||||
}
|
||||
@ -1523,7 +1518,8 @@ template <typename KeyT, typename ValT, unsigned N, typename Traits>
|
||||
void IntervalMap<KeyT, ValT, N, Traits>::
|
||||
iterator::setNodeStop(unsigned Level, KeyT Stop) {
|
||||
while (Level--) {
|
||||
this->pathNode(Level).branch().stop(this->pathOffset(Level)) = Stop;
|
||||
this->pathNode(Level).template get<Branch>()
|
||||
.stop(this->pathOffset(Level)) = Stop;
|
||||
if (this->pathOffset(Level) != this->pathNode(Level).size() - 1)
|
||||
return;
|
||||
}
|
||||
@ -1534,7 +1530,7 @@ iterator::setNodeStop(unsigned Level, KeyT Stop) {
|
||||
/// Leave the current path pointing at the new node.
|
||||
template <typename KeyT, typename ValT, unsigned N, typename Traits>
|
||||
void IntervalMap<KeyT, ValT, N, Traits>::
|
||||
iterator::insertNode(unsigned Level, NodeRef Node, KeyT Stop) {
|
||||
iterator::insertNode(unsigned Level, IntervalMapImpl::NodeRef Node, KeyT Stop) {
|
||||
if (!Level) {
|
||||
// Insert into the root branch node.
|
||||
IntervalMap &IM = *this->map;
|
||||
@ -1559,10 +1555,10 @@ iterator::insertNode(unsigned Level, NodeRef Node, KeyT Stop) {
|
||||
}
|
||||
|
||||
// Insert into the branch node at level-1.
|
||||
NodeRef NR = this->pathNode(Level-1);
|
||||
IntervalMapImpl::NodeRef NR = this->pathNode(Level-1);
|
||||
unsigned Offset = this->pathOffset(Level-1);
|
||||
assert(NR.size() < Branch::Capacity && "Branch overflow");
|
||||
NR.branch().insert(Offset, NR.size(), Node, Stop);
|
||||
NR.get<Branch>().insert(Offset, NR.size(), Node, Stop);
|
||||
setNodeSize(Level - 1, NR.size() + 1);
|
||||
}
|
||||
|
||||
@ -1624,6 +1620,7 @@ iterator::treeInsert(KeyT a, KeyT b, ValT y) {
|
||||
template <typename KeyT, typename ValT, unsigned N, typename Traits>
|
||||
void IntervalMap<KeyT, ValT, N, Traits>::
|
||||
iterator::overflowLeaf() {
|
||||
using namespace IntervalMapImpl;
|
||||
unsigned CurSize[4];
|
||||
Leaf *Node[4];
|
||||
unsigned Nodes = 0;
|
||||
@ -1634,7 +1631,7 @@ iterator::overflowLeaf() {
|
||||
NodeRef LeftSib = this->leftSibling(this->map->height-1);
|
||||
if (LeftSib) {
|
||||
Offset += Elements = CurSize[Nodes] = LeftSib.size();
|
||||
Node[Nodes++] = &LeftSib.leaf();
|
||||
Node[Nodes++] = &LeftSib.get<Leaf>();
|
||||
}
|
||||
|
||||
// Current leaf node.
|
||||
@ -1645,7 +1642,7 @@ iterator::overflowLeaf() {
|
||||
NodeRef RightSib = this->rightSibling(this->map->height-1);
|
||||
if (RightSib) {
|
||||
Offset += Elements = CurSize[Nodes] = RightSib.size();
|
||||
Node[Nodes++] = &RightSib.leaf();
|
||||
Node[Nodes++] = &RightSib.get<Leaf>();
|
||||
}
|
||||
|
||||
// Do we need to allocate a new node?
|
||||
@ -1662,9 +1659,8 @@ iterator::overflowLeaf() {
|
||||
|
||||
// Compute the new element distribution.
|
||||
unsigned NewSize[4];
|
||||
IdxPair NewOffset =
|
||||
IntervalMapImpl::distribute(Nodes, Elements, Leaf::Capacity,
|
||||
CurSize, NewSize, Offset, true);
|
||||
IdxPair NewOffset = distribute(Nodes, Elements, Leaf::Capacity,
|
||||
CurSize, NewSize, Offset, true);
|
||||
|
||||
// Move current location to the leftmost node.
|
||||
if (LeftSib)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user