1.类的static成员属于类本身,在类加载时就会分配内存,可以通过类名::直接访问;非static成员属于类的对象,即在创建实例对象时才会得到内存分配,然后通过对象调用 2.正因为static函数属于类,而不是对象,所以static函数压根就没有this指针这个东西,因此也顺理成章的无法直接访问类的非static成员(函数和变量)。但可以通过...
The compiler throws: "invalid use of non-static member 'it', why is this ? The inheritance is correct but I dont understand why it doesnt let me use it and the allInfo vector. classJSON{private: vector<myType> allInfo;public:friendostream &operator<<(ostream &os,constJSON &js) { vec...
main.cpp: In function ‘int main()’: main.cpp:31:26: error: invalid use of non-static member function ‘void Test::testDemo()’ 31 | std::thread t(myTest.testDemo); | ~~~^~~~ main.cpp:18:10: note: declared here 18 | void testDemo() | 1. 2. 3. 4. 5. 6. 7. 🟡...
I'm having a bad time trying to call a correctly-working expression (ultra[currentSensor].ping_timer(echoCheck)) from an own class method (myclass::run) instead of from void loop(). I'm getting the following compiler error: "invalid use of non-static member functi...
编译报错:MicRecorder.cpp: In member function 'int micrecord::MicRecorderImpl::audioThread(void*)': MicRecorder.cpp:297:79: error: invalid use of non-static member function。 1 2 如果要创建线程函数audioThread为MicRecorderImpl类成员函数,就需要使用静态函数。
And I have another class that has a member of type Displayer. When I try to initialize it in the constructor I get an error: invalid use of non-static member function. I do not see any call of functions in the static manner (Displayer::). Because the code is very big, what else ...
C++编译错误"invalid use of non-static data member"通常是由于尝试在非静态上下文中使用静态数据成员或函数返回值造成的。这种错误可能出现在试图对一个静态成员进行操作，或者在函数中返回一个非void类型的值时，没有正确地处理其返回值。在C++编译流程中，几个关键的概念包括：目标文件(obj)：源代码...
src/mqqt.cpp: In member function 'int AWS_MQQT::aws_mqqt_setup(...)': src/mqqt.cpp:37:51: error: invalid use of non-static member function while (subscribe(topic_name, mySubCallBackHandler) != 0) { ^ I removed parameters from functions to simplify the code: ...
class Date { public: int day,month,year; void init(int,int,int); void print_ymd(); }; void Date::init(int yy, int mm, int dd) { year = yy; month = mm; day = dd; } void Date::print_ymd() { std::cout << year << "-" << month << "-" << day << std::endl; ...