以下代码无法编译...知道为什么吗?这是非法的 C++ 吗?
class Handler {
public:
template <typename T>
void handle(T t) {}
};
class Initializer {
public:
template <typename T, typename H>
void setup(H *handler) {
void (H::*handle)(T) = &H::handle<T>; // fails
}
};
int main() {
Initializer initializer;
Handler handler;
initializer.setup<int, Handler>(&handler);
}