Error: invalid use of member in static member function

I have two classes, and this is the header of one of them: I am calling Wrapper::set_screen(screen) from another file and I get this error: I also get a similar error for the definition of every single function on Wrapper.cpp, for example: On compile: I know it’s related to the class being static and thus … Read more

Why does my program give “NULL used in arithmetic”

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it’s on-topic for Stack Overflow. Closed 7 years ago. I wrote the following; It worked correctly, but when I added the line at the end: It no longer works. Why?

error: no member function declared in class

I keep getting the following errors from my code: (line 58) error: no ‘std::string Person::Modify_Person(Person)’ member function declared in class ‘Person’ In function ‘int main()’: (line 113) error: ‘Modify_Person’ was not declared in this scope Here is the code:

Meaning of *& and **& in C++

That is taking the parameter by reference. So in the first case you are taking a pointer parameter by reference so whatever modification you do to the value of the pointer is reflected outside the function. Second is the simlilar to first one with the only difference being that it is a double pointer. See … Read more

“please check gdb is codesigned – see taskgated(8)” – How to get gdb installed with homebrew code signed?

This error occurs because OSX implements a pid access policy which requires a digital signature for binaries to access other processes pids. To enable gdb access to other processes, we must first code sign the binary. This signature depends on a particular certificate, which the user must create and register with the system. To create … Read more

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)