I'm making a binary expression tree, and to do so I'm reading in values and putting them into a tree node and a pointer to that tree node into a stack. How do I use the STL stack implementation with pointers to my TreeNode class?
stack<TreeNode> s; TreeNode * a = new TreeNode(val); s.push(a);
TreeNode is a class I created.
gives this error:
treecalc.cpp:54: error: no matching function for call to ‘std::stack<TreeNode, std::deque<TreeNode, std::allocator<TreeNode> > >::push(TreeNode*)’
/usr/include/c++/4.2.1/bits/stl_stack.h:178: note: candidates are: void std::stack<_Tp, _Sequence>::push(const typename _Sequence::value_type&) [with _Tp = TreeNode, _Sequence = std::deque<TreeNode, std::allocator<TreeNode> >]