提问 ：c++报错 ：error: no matching function for call

Question

qt程序在终端中编译出现的问题，各位大佬，请问这怎么解决呢？？？

clientthread.cpp: In member function ‘void ClientThread::deng_send_work1()’:
clientthread.cpp:360:64: error: no matching function for call to ‘QTimer::singleShot(int, ClientThread*, ClientThread::deng_send_work1()::<lambda()>)’
     QTimer::singleShot(5*1000,this,[=](){m_timer0->start(500);});
                                                                ^
In file included from /usr/include/qt4/QtCore/QTimer:1:0,
                 from clientthread.h:7,
                 from clientthread.cpp:1:
/usr/include/qt4/QtCore/qtimer.h:78:17: note: candidate: static void QTimer::singleShot(int, QObject*, const char*)
     static void singleShot(int msec, QObject *receiver, const char *member);
                 ^
/usr/include/qt4/QtCore/qtimer.h:78:17: note:   no known conversion for argument 3 from ‘ClientThread::deng_send_work1()::<lambda()>’ to ‘const char*’
 

Answer 1

这种情况建议把代码贴出来吧。

我猜测是不是slot写法有问题，看起来在终端里是qt4

将

QTimer::singleShot(time, this, &deng_send_work1);

改成

QTimer::singleShot(time, this, SLOT(deng_send_work1()));