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fix a bug when deleting songs and CHILDREN_PER_NODE > 3

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git-svn-id: https://svn.musicpd.org/mpd/trunk@4507 09075e82-0dd4-0310-85a5-a0d7c8717e4f
This commit is contained in:
Warren Dukes 2006-08-01 03:29:13 +00:00
parent 6f695b8d74
commit 42390c5e3b
1 changed files with 6 additions and 8 deletions
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14
src/tree.c
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@ -384,12 +384,10 @@ _DeleteAt(TreeIterator * iter)
void * dataToFree = *data;
{
TreeNode * child = NULL;
// find the least greater than data to fill the whole!
if (node->children[pos+1])
{
child = node->children[++pos];
TreeNode * child = node->children[++pos];
while (child->children[0])
{
pos = 0;
@ -403,7 +401,7 @@ _DeleteAt(TreeIterator * iter)
// or the greatest lesser than data to fill the whole!
else if (node->children[pos])
{
child = node->children[pos];
TreeNode * child = node->children[pos];
while (child->children[child->dataCount])
{
pos = child->dataCount;
@ -427,12 +425,12 @@ _DeleteAt(TreeIterator * iter)
// move data nodes over, we're at a leaf node, so we can ignore
// children
int i = --node->dataCount;
for (; data != &(node->data[i]); i--)
int i = data - node->data;;
for (; i < node->dataCount-1; i++)
{
node->data[i-1] = node->data[i];
node->data[i] = node->data[i+1];
}
node->data[node->dataCount] = NULL;
node->data[--node->dataCount] = NULL;
// merge the nodes from the bottom up which have too few data
while (node->dataCount < (CHILDREN_PER_NODE/2))