Consider this demo program: #include <stdio.h> class Base { public: virtual int f(int) =0; virtual int f(){ return f(0); }
The main question is how do I implement startTest() so that it calls runTest in all the subclasses.Thanks!
This question already has answers here: Pure virtual function with implementation (10 answers) Closed 3 year开发者_StackOverflows ago.
I want to go 开发者_运维知识库to there. Seriously though, how does one implement a pure virtual method in an \"Apple\" way? Do you use a Protocol with your base class and throw exceptions on those met
I\'m having some trouble implementing pure virtual functions inherited from some abstract class, when the classes in question are divided into *.h and *.cpp files. The compiler (g++) tells me that the
According to my (limited) knowledge of the C++ spec, the vtable of a class with virtual members is placed at开发者_C百科 the definition of the first non-pure non-inline virtual method. How do compiler
In an application I\'m currently writing, I created a template class with a pure virtual function, then an another class inheriting an instance of the former and implementing the virtual function. The
C++03 3.2.2 ...An object or non-overloaded function is used if its name appears in a potentially-evaluated expression. A virtual member function is used if it is not pure...
I\'ve a simple class that looks like Boost.Array. There are two template parameters T and N. One drawback of Boost.Array is, that every method that uses such an array, has to be a template with parame
why if we have pure virtual assignment operator in a base class, then we implement that operator on the derived class, it give linker error on the base class?
加载中,请稍侯......