I am a beginner in C++. Look the following code:
// in myclass.h
class MyClass
{
public:
void foo();
int bar;
};
// in myclass.cpp
#include "myclass.h"
void MyClass::foo()
{
// does something
}
//in main.cpp
#include "myclass.h" // defines MyClass
int main()
{
MyClass a;
return 0;
}
as far as I understand, in order to make interfaces separated from implementations, the source code file main.cpp includes the header file myclass.h; the latter contains the attributes and the prototypes of the methods within class MyClass, but not the implementation of those methods which are instead contained by myclass.cpp. In turn myclass.cpp is including myclass.h.
Can someone explain me how exactly the compiler links the prototype contained in a header file to its actual implementation?
In this particular case, I am asking how myclass.h is linked toward myclass.cpp.
