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fix GC safety bug in cloneTreeNode

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This commit is contained in:
Joel Dice 2008-04-11 17:40:36 -06:00
parent 33b32398c2
commit 7eef2e7918
1 changed files with 2 additions and 0 deletions
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src/util.cpp
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@ -50,6 +50,8 @@ setTreeNodeRed(Thread*, object n, bool red)
inline object inline object
cloneTreeNode(Thread* t, object n) cloneTreeNode(Thread* t, object n)
{ {
PROTECT(t, n);
object newNode = makeTreeNode object newNode = makeTreeNode
(t, getTreeNodeValue(t, n), treeNodeLeft(t, n), treeNodeRight(t, n)); (t, getTreeNodeValue(t, n), treeNodeLeft(t, n), treeNodeRight(t, n));
setTreeNodeRed(t, newNode, treeNodeRed(t, n)); setTreeNodeRed(t, newNode, treeNodeRed(t, n));