afonja's Friends

[C++] Махинации.
Есть такая штука:

struct KeyRecordS
{
    KeyRecordS() {};
    KeyRecordS(int _Key, byte *_P, size_t _S) : key(_Key), rec(_P, _S) {}
    int key;
    CByteRecPtr rec;
};

struct KeyRecord
{
    KeyRecord() {};
    KeyRecord(const KeyRecord& _Y) { *this = _Y;}
    KeyRecord& operator=(const KeyRecord& _Y)
    {
        m_Rec.key = _Y.m_Rec.key;
        *m_Rec.rec = _Y.m_Rec.rec.GetRec();
        return (*this);
    }
    KeyRecordS m_Rec;
};

А вот как она используется:

pair<KeyRecord*, KeyRecord*> ind_range;
KeyRecord* pFirstIndRec = (KeyRecord*)&*records.begin();
while(pFirstIndRec != (KeyRecord*)&*records.end())
{
    //...
    ind_range = equal_range(pFirstIndRec, (KeyRecord*)&*records.end(), *pFirstIndRec, OnlyKeyCompare);
    //...
    pFirstIndRec = ind_range.second;
};

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