Skip all the sub elements of the current node and position the reader on its corresponding end node. While skipping ensure that the elements being skipped are well‐formed and do not contain any parsing errors. Return 0 on successful skip, and a negative number otherwise (error). The behavior is undefined unless balxml::Reader::e_NODE_TYPE_ELEMENT == node.type(). Note that each call to advanceToEndNode invalidates strings and data structures returned when Reader accessors were called for the "prior node". E.g., the pointer returned from nodeName for this node won't be valid once advanceToEndNode is called. Note that this method leaves the reader pointing to an end node, so calling one of the advanceToEndNode immediately after will not advance the reader further (first call advanceToNextNode before calling the advanceToEndNode function again).