Product.cpp:34:警告: 'QTextStream & ENDL(QTextStream &)' 的地址 , 將始終評估爲 '真'此警告消息的含義是什麼?
Product.cpp:在成員函數「無效 產品: :setProductToSold()':
Product.cpp:45:警告:地址 'QTextStream & ENDL(QTextStream &)', 將始終評估爲 '真'
#include <string>
#include <iostream>
#include <time.h>
using std::string;
using std::cout;
#include "Product.h"
Product::Product()
{
seller = "";
itemName = "";
price = 0.00;
min = 0.00;
buyingPrice = 0.00;
time = 0;
description = "";
highestBidder = "None";
currentBid = 0.00;
timer = new QTimer(this);
connect(timer, SIGNAL(timeout()), this, SLOT(setProductToSold()));
}
void Product::startTimer()
{
Line 34: cout << " Timer Started " << endl;
timer->start(2000, TRUE); // 2 seconds single-shot timer
}
void Product::setHandler(Handler *h)
{
handler = h;
}
void Product::setProductToSold()
{
Line 45: cout << " Item auction over" << endl;
}
我Product.h ::
#include <string>
#include <qobject.h>
#include <qtimer.h>
#include <qgl.h>
#include "HandleTCPClient.h"
class Handler;
//Define ourselves a product class
class Product : public QObject
{
Q_OBJECT
public:
Product();
QTimer *timer;
string seller, itemName, description, highestBidder;
double price, min, buyingPrice, currentBid;
int time;
bool isSold;
Handler *handler;
void setHandler(Handler *h);
void startTimer();
public slots:
void setProductToSold();
};
#endif
謝謝:)
線45上面是什麼? – 2009-11-24 20:04:19