weird error when calling function in other class?

[sciguy77]

Hi,

With this code in class1:

class2::myFunction();

I hoped to call a function in class 2:

void class2::myFunction()
{
    printf("myFunction");
    
}

Each is in its own file, and the error thrown is:

call to a nonstatic member function without an argument

Sorry if this is painfully obvious, but could someone tell me what I'm doing wrong?

[Zhuge]

The method myFunction() isn't static, so you need an instant of class2 to call it.

class2 obj;
obj.myFunction();

[Turbine]

Make that "myFunction()" a static member, meaning you can call its methods without instantiating it. If you have done so, are you including the header with the class definition.