Question

When compiling my source I got this error, ‘MPageArrayCursor’ : illegal use of this type as an expression on this part of the source:

class MPageArrayCursor { 
protected: 
    int m_nIndex;

public: 
    MPageArrayCursor(int nIndex) { 
        m_nIndex = nIndex; 
    } 

    virtual ~MPageArrayCursor(); 

    int GetIndex() {
        return m_nIndex; 
    } 

    void SetIndex(int nIndex) {
        m_nIndex = nIndex;
    } 
};

void Add(T pData, MPageArrayCursor* pCursor=NULL)
{
    int nFreeSlot = m_UnusedQueue.top();
    m_UnusedQueue.pop();

    Set(nFreeSlot, pData, pCursor);
}

Originally was a VC++ 2k10 solution that I ported to 2k12.
Why I’m getting this error?

This is the full code: http://pastebin.com/xjVKCZjZ

Answer 1

Your code works fine except you need to include functional header for std::greater function operator on VS2012

#include <functional>