c++98(也适用于 c++11)
#include <iostream>
class myClass
{
public:
enum myBasket{one, two, three};
myBasket bSize(myBasket size){
return size;
}
};
int main()
{
myClass A;
//枚举的名称在 c++98 中不被视为作用域 std::cout<
return 0;
}
c++11
#include <iostream>
class myClass
{
public:
enum myBasket{one, two, three};
myBasket bSize(myBasket size){
return size;
}
};
int main()
{
myClass A;
//only worked on c++11, the enum name work as a scope
std::cout<<A.bSize(myClass::myClass::one)<<std::endl;
return 0;
}
您可以在 c++11 中声明枚举的类型并进行前向声明
.hpp
enum class myBasket;
class myClass
{
public:
myBasket bSize(myBasket size);
};
.cpp
enum class myBasket : int{one, two, three};
注意枚举类不能隐式转换为 int