在C++中,当你尝试以不正确的方式访问或引用非静态成员函数时,会遇到“reference to non-static member function must be called”错误。下面我将详细解释这个问题,并提供解决方案。 1. 什么是非静态成员函数? 非静态成员函数是类的成员函数,它依赖于类的实例(对象)来调用。与静态成员函数不同,非静态成员函数可以访...
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)){ ....
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)...
classSolution{public:intmath(intn){intans =0;while(n) { n &= (n -1); ans++; }returnans; }staticboolcmp(intx,inty){if(math(x) ==math(y))returnx < y;elsereturnmath(x) <math(y); }vector<int>sortByBits(vector<int>& arr){sort(arr.begin(), arr.end(), cmp);returnarr; }...
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 解决方法是,在类的头文件中将getData设置为静态方法...
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-...
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
C++:Reference to non-static member function must be called 2020-11-06 10:33 −... macguz 0 3086 Callback must be a function. Received undefined 2019-12-22 00:20 −fs.js:143 throw new ERR_INVALID_CALLBACK(cb); ^ TypeError [ERR_INVALID_CALLBACK]: Callback must be a function. ...
Within the body of a non-static member function ofX, any unqualified-id that resolves to a static member, an enumerator or a nested type ofXor of a base class ofX, is transformed to the corresponding qualified-id: structS{staticintn;voidf();};voidS::f(){n=1;// transformed to S::...
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