C＆＃x2B;＆＃x2B;为什么这是必要的？
使用GCC，我们无法明确编写明确地访问基类中的成员，但是它在MSVC上起作用，这是怎么回事？是因为CRTP吗？
#include <iostream>
template<class T>
struct Base {
protected:
T* a;
};
template<class U>
struct Derived : Base<Derived<U>> {
void print_a() {
std::cout << a << std::endl; // doesn't work on GCC
std::cout << this->a << std::endl; // works on GCC
}
};
int main() {
Derived<float> d;
d.print_a();
}
With GCC, we can't access the member in the base class without writing this explicitly, but it works on MSVC, what is going on? Is it because of the CRTP?
#include <iostream>
template<class T>
struct Base {
protected:
T* a;
};
template<class U>
struct Derived : Base<Derived<U>> {
void print_a() {
std::cout << a << std::endl; // doesn't work on GCC
std::cout << this->a << std::endl; // works on GCC
}
};
int main() {
Derived<float> d;
d.print_a();
}
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