Please describe the problem:
xpath.c(2832):xmlXPathCmpNodes(xmlNodePtr node1, xmlNodePtr node2)

If node1==node2, and node1 is the first attribute of a node, the function returns -1 instead of 0.

[code]
cur = attrNode2->prev;
while (cur != NULL) {
  if (cur == attrNode1)
    return (1);
  cur = cur->prev;
}
return (-1);
[/code]

As the attribute node is the first, cur is NULL, the loop exists, and the next instruction is return -1.

Solution:

Add something like

if (node1 == node2) {
  return 0;
}

in the beginning of the procedure.


Steps to reproduce:


Actual results:


Expected results:


Does this happen every time?


Other information: