假设我们有一个叫做Vehicle抽象类: class Vehicle {
virtual bool raceWith(Vehicle *anotherVehicle) = 0;
};
而且我们有它的子类Bicycle和Car: // forward declaration
class Car;
class Bicycle : public Vehicle {
vir
我无法覆盖使用模板参数包扩展指定的基类的虚拟方法 - 重写方法将显示实际相关类型。下面是一个MCVE: #include <iostream>
template <typename... Ts>
class A { virtual void foo(Ts&&...); };
class B : public A<int, unsigned> {
void foo(int x, u
下应,我相信,编译和链接,但并不: template<class S>
class A {
public:
virtual int foo(S arg) = 0;
virtual ~A() { }
};
class B : public A<int* __restrict__>
{
public:
int foo(int* __restrict__ ar
我试图写一个基类,它包含几个非常类似的虚拟方法,我希望使用模板来减少重复的虚拟方法: class CPU {
template<typename T>
T getRegister(unsigned int which) {
/** Returns value of specified register.
*/
return *(T*)this
我有以下代码 public class Base {
public Base() {}
public virtual void IdentifyYourself() {
Debug.Log("I am a base");
}
public void Identify() { this.IdentifyYourself(); }
}
p
class Base{
public:
virtual int first()=0;
virtual int second()=0;
};
class Derived: public Base{
public:
virtual int first(){return 5;}
virtual int second(){return 15;}
};