Advance this iterator to the next element in the tree.
Synopsis
Declared in <bslstl_treeiterator.h>
TreeIterator<VALUE, NODE, DIFFERENCE_TYPE>&
operator++();
Description
Move this iterator to the next element in the tree and return a reference providing modifiable access to this iterator. The behavior is undefined unless the iterator refers to an element in the tree.
Return Value
reference providing modifiable access to this iterator
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