Gets the ordinal position of a node within a list, counting from the tail of the list.
Synopsis
int32 GetNodePosFromTail(const List *l, const Node *n);
Description
This function scans the supplied list backward looking for the supplied node, and returns the ordinal position of the node within the list. If the node doesn't appear in the list, the function returns -1.
Arguments
l
A pointer to the list to scan for the node.
n
A pointer to a node to locate in the list.
Return Value
The ordinal position of the node within the list counting from the tail of the list, or -1 if the node isn't in the list. The last node in the list has position 0, the second to last node has position 1, etc.