使用sort函数的时候因为自己要定义compare,但是会报错error: reference to non-static member function must be called。 解决方案: compare函数前面加个static就可。这题是力扣205题,题源: 力扣leetcode-cn.com/problems/isomorphic-strings/ classSolution{public:structST{charch1;charch2;};staticboolcmp1(struc...
Qt开发,一行代码报错: reference to non-static member function must be called; did you mean to call it with no arguments? 代码: if(tbxD.toPlainText().trimmed().length==0) { ... } if(tbxM.toPlainText().trimmed().length==0) { ... } if(tbxS.toPlainText().trimmed().length==0)...
Whenever I attempt to build it I get these messages /home/kiwifruit555/Documents/kUwU/Web/mainwindow.cpp:12: error: invalid use of non-staticmember function ‘voidQWebEnginePage::featurePermissionRequested(constQUrl&, QWebEnginePage::Feature)’ ../Web/mainwindow.cpp: In constructor ‘MainWind...
是因为此时智能指针m_p的处理函数是一个类中的成员函数unlock,且传给智能指针的也是一个函数指针,但是要调用成员函数的话,是需要通过类的实例对象来进行的,而在智能指针中调用的时候,是没有这个实例对象存在的,结果就挂了。 参考:http://stackoverflow.com/questions/22513680/non-static-member-function-must-be-...
https://blog.csdn.net/qq_26849233/article/details/77930991 之前写多线程函数getData 在main中调用时, std:thread t(getData) getData的实现是 void getData(){ } 但是如果是在一个类的构造方法中调用时,这样写就会报错,reference to non-static member function must be called ...
错误:Char 26: fatal error: reference to non-static member function must be called 主要原因是我使用了函数指针,而函数指针所指函数须得是静态才行 classSolution{public:vector<int>exchange(vector<int>& nums){returnReOrder(nums,iseven); }vector<int>ReOrder(vector<int>& nums,bool(*func)(int)){...
}classHehe{public:intsquare(intnum){returnnum * num; } };intmain(){inta =square(2); Hehe h;intb = h.square(3);return0; } 006t.gimple intsquare(intnum){intD.2396; D.2396= num * num;returnD.2396; }intmain(){intD.2398; ...
How would I go about to fix this error? The error occurs at line 60 with the message "error: reference to non-static member function must be called; did you mean to call it with no arguments?". 1 2 3 4 5 6 7 8 9 10
题目很简单,利用lowbit操作计算一个数二进制1的个数,接着自定义比较函数进行排序即可,但是C++在类中自定义比较函数不能简单地定义为成员函数,需要定义为静态成员函数。 具体看:Reference to non-static member function must be called