[Qt-interest] QList::size() returns negetive and append() crashes

[Neel Basu]

Here goes my Code
QList::size() returns negative
and QLIst::append() crashes 
------------------------------------------------------------------------------------------------
class Protocol : public QObject{
	friend class ProtocolExecutioner;
	Q_OBJECT
	private:
		QList< ProtocolSegment* > segments;
	public:
   		Protocol(QObject *parent = 0);
    		~Protocol();
	public:
   		int addSegment(ProtocolSegment* p);
   		void insertSegment(ProtocolSegment* p, int pos);
    		ProtocolSegment* removeSegment(int pos);
		ProtocolSegment* segmentAt(int pos) const;
   		int count() const;
};
.....
int Protocol::addSegment(ProtocolSegment* p){
	int id = segments.size();
	qDebug() << id;//prints -15248256 
	segments.append(p);//crashes saying "QList: Out of memory"
	return id;
}
-------------------------------------------------
segments.append(p); appends an element to a list
Now what makes my code Crash

Thanks
Neel
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